Lpg backfire airbox Results 1 to 3 of 3 Thread: LPG Backfire. 2 petrol injected type BUT it has LPG anyhoo. 9 vogue se on duel fuel. BA sedan was converted and had aftermarket LPG tank installed, not sure what its called but you depress a button and the fuel supply switches. Apr 27, 2017 · Car would run fine, all of a sudden I'd get series of backfires, and every single time without fail it would shatter my airbox - this mostly happens when i punch it in the guts off the lights. I have 2 V8s on LPG. Cheers Mickey. Plugs and leads were not changed. regular servicing is a must. 9 d1 thats started to backfire through the airbox every now and then 3 times on a 100km trip how can i fix it or does it just need a tune up If you have had 3 back fires through to the Airbox, then also check you MAF, that's often how they end up dead, the little thin platinum sensor wire gets blown to smitherines. Dec 2, 2003 · Yesterday I witnessed a virtually brand new dedicated LPG BA have a considerable airbox blowback. Maybe your system wasnt installed or set up properly. I renew whole ignition system to the cars (ie. The timing set for Gas fuel has to be a compromise between both fuels as LPG fires a lot earlier than Jun 11, 2017 · LPG system: likely needs plugs and leads as the LPG system can backfire or stall under load. Nov 16, 2003 · The Garage - Tech Forums. 0 P38 and the Disco 1 3. A back fire can cause the airbox to destroy itself. car on lpg and petrol, backfires back through airbox when on gas big time, haqs just blown air cleaner box to pieces, any ideas please. Apr 3, 2006 · Have a look at your Airbox to make sure it is in one piece and still connected to the throttle body. Show Printable Version; 17th August 2012, 02:27 PM #1. also when runing the suction holds it closed Nov 15, 2011 · The only reasons lpg backfires are running too lean and poor spark. Firstly its pretty difficult to install and tune it as generally LPG needs a different tune to normal unleaded cars, secondly have you ever seen the damage of an lpg backfire? I had it happen once and it blew apart my airbox (and stuffed the filter). ive had problems and learnt from them so il tell you wot i know. After engine stripdown for headgasket renewal, my brother plastic welded the lugs back into place. all he told me was that it was a random misfire and a specific cylinder wasn't pinpointed (does this mean that the computer can't tell which cylinder is misfiring or the Feb 18, 2006 · Ford Cars and PAG Vehicles. Have run lpg for years and no backfires if tuned correctly. My 1997 Fairmont 4 litre (petrol and LPG) will only idle at about 1700-1800 rpm. also check your leads are up to task this may also be the But only cars on gas backfire you say, so gas must cause the backfire, WRONG. If your coils have the cylinder numbers marked on them,they are likely to be the original coils. You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. Once running & on the road, if switched to gas before warm up it backfires thru airbox. However, this last time it happend (up the hill), it took out my airbox. Back to topic, back fires on LPG are caused by wrong or worn plugs and leads, air leaks or tuned to lean. 9 V8 with the square airbox - is this an identical part to the one fitted on the 4. The ignition systems check out fine. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. Replacement Aug 25, 2008 · lol this guy, Old post ! I did the same thing on my VP except I fiber glassed the inside of the box for extra strength to ! Worked really well. I am looking at getting rid of my air box that has exploded (LPG backfire) and replace it with either the GU's 3ltr or a univeral so I can make room for a second battery. 1998 p38 lpg backfire. Jul 22, 2010 · For those that dont know why people would be looking for an EFI airbox and why they are so hard to find, most petrol Patrols are put on LPG and at some point, they all tend to backfire. Had same thing occur about 2 years ago, fixed for few a few hundred had been OK since, but have not attempted to fix this time as will leave for buyer. Jan 10, 2008 · Hi all. Bottom of the airbox is a bit twisted and missing 2 clips but (touch wood) it seems to be running OK. firstly mine did lots off blow backs when i got her when running on gas she use to blow the air box lid off so i cable tide it down wot a mistake it blew it to bits. After diagnos&get some advice. 8L Ecotec LPG Overhaul (Backfire/Air Box/Smell) Before I start, I will admit I am a complete noob and have next to no idea what I am doing. Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Dec 12, 2006 · hi ive got a rrclassic 1995 soft dash 3. This simple D. 00 each. Car runs now on LPG and Petrol but now im wondering whether to bin the LPG or not? Feb 1, 2012 · There appears to be regular running defects apart from the BACKFIRE that blows the airbox apart. lpg causes backfiring as it ignites too early for the timing set for the petrol only ignition. That should save you buying airboxes all the Dec 3, 2010 · Airbox 200 Series Wants. 00 Top part of airbox 150. Car done a big backfire yesterday (30 degree day) blew off the gas inlet tube from mixer ring, blew off intake resonator and blew up airbox. Whats Happening Is When Running On Lpg Every 50 Miles Or So The Car Backfires And Blows The Air Filter Box Lid Off!! Goes With A Right Bang Too So When I Switch To Running On Petrol It Stops Backfiring But Once Or Twice A Day When Pulling Up To A Junction Decides To Idol At Around 100-200 Rpm Before Stalling - Usually Restarts Okay?? Jul 14, 2007 · Lpg Before I forked out for stainless leads and good quality plugs (funnily enough the distributor of my lpg system only uses Ford plugs) I was always having backfires in my commodore. sorry for the lack of tech talk Nov 19, 2024 · Been reading all the posts, Has the Air Flow meter been confirmed as good? You mention its been run on LPG the majority of its life and if any LPG backfires have happened could be damaged and the reason for the hunting idle on petrol as far as timing is concerned mine is a 95 update model on Aug 19, 2015 · what I have done is run a hose from the canister breather into the lower airbox, this just lets the canister breath into the box and the engine consumes any excess fumes through the intake rather than it being sucked out by manifold vac via the solenoid. 2 engines on propane with distributorless ignition. I had a dedicated gas LPG absolute terrible design always backfired didn't start in the cold and had the LPG converter changed twice cause it kept malfunctioning LPG is a crap car fuel and you use twice the amount Jan 9, 2007 · Sounds like a backfire. 95 D1 AND 02 D2. How would I know whether it was a backfire? it sounded like it came from the front, not the back. The throttle blade Jan 6, 2004 · If it's an LPG backfire it's nothing to do with the fact the car is EFI - it's usually a leaking LPG regulator. Jul 11, 2003 · [size=-2]1995 EF II Falcon GLi: Heritage Green, 4spd Auto, AUII 17" Rims, Custom BA Front Bar, Lowered, Gas Research LPG, Clear Indicators, JVC MP3 Headunit, Phoenix Gold 6. Standard issue LPG system backfire through the air intake box, blew front off that, now engine situation is this: will not stay running when turning over (using petrol), a weird whistle noise from the front, mechanic seems to lean towards the computer yet car was running fine prior. This has happened a few times recently and is getting more frequent. when lpg backfires it can blow the airbox to peices. he did have a handheld obd2 scanner but i don't know what information he got from it. so then found out that when running on lpg the engine runs much hotter and any and i mean any Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Jan 19, 2010 · Not one backfire at all in a variety of driving conditions. Ondanks dat er vele lpg inbouwers niet happig waren op het inbouwen van een lpg installatie in een 2. I used to have a VS 6 and it hated LPG, infact I had to redo the cylinders 3 times in the 4 years I had it. It has problems running in petrol and I was trying to start it directly in LPG and got a backfire, the air intake hat was blown up , and the air filter wasn't broken, just a little bumped. 5" Splits, Coustic 481QE Amp, Clarion 12" sub, Leather Seats, Power Window Conversion, 3. There is a set of tanks you can get that fit under the sills and hold 35l usable per side. Scared the sh!t out of me as i thought it was something suspensionor brake related. (the bit that converts the LPG to a vapour, has the coolant line running through it aswell. Dec 19, 2004 · It exploded the air box and made the engine run very rough at tick over. Welcome to the Volvo Community forums of the Volvo Owners Club. Both have the GM 2. Jul 28, 2007 · Factor in the following items at a later if you go down the lpg mixer path. 🚗 DIMENSIONS - Diameter: 74mm, Height: 47mm. May 2, 2012 · If your saying that There has been a LPG backfire severe enough to blow the airbox to pieces then yes its certainly possible you have broken something. 3E (het gewoon niet deden), vanwege de kans op back-fire, heb ik toch iemand gevonden die het deed (vlak in de buurt zelfs) Diegene die dit voor me heeft gedaan, had als 🚗 USAGE - This valve protects air box from damage in case of backfire. Not sure if this is a universal LPG BA Falcon experience but our Ute and sedan both would run real rough between 100-110kmh or 3000rpm. If you are lucky it may just need clipping back together. Airflow Meter just over 700. 🚗 DIMENSIONS - Diameter: 72mm, Height: 22. Apr 30, 2011 · If you have had 3 back fires through to the Airbox, then also check you MAF, that's often how they end up dead, the little thin platinum sensor wire gets blown to smitherines. its a 99 1mz-fe with obd2 my check engine light works because it turns on when i almost stall lol. I recently had to take the 80 over the pits where they stung me for a new LPG converter. Way more fuel efficient tbh, get more kms than with petrol. Nov 25, 2021 · So I have been reading everything I can about an NM Pajero LPG vapor mixer backfire. 5" Exhaust, Mandrel Bent Intake, High Flow Filter, Wade 1004 110 cam. Airbox Top: 165TL Airbox Bottom: 345TL TB Elbow: 245TL I got them to rebuild the airbox (there were more or less enough bits left of it) and they have managed to get the TB Elbow back together. Jul 17, 2001 · quickie here. At the moment my LPG supply automatically switches over when the engive revs reach about 1500rpm regardless of the engine temperature. 9 V8 and Nov 27, 2009 · Hello, I have a 2000 v6 blazer modified to run on LPG (like a kitchen stove). Some syptoms will be poor fuel economy and the car just running rough in general check for any vacum leaks. Y conversion will save money & inconvenience. 1759 Views 6 Replies 2 Participants Last post by ELwilldo, Dec 8, 2004 Jump to Latest E. been like it for quite a while and no issues. Virtually no-one in England has even heard of a Fairmont - so info is REALLY hard to find. Then again you might get lucky and have no issues at all. Sep 8, 2011 · When I asked when these small backfire might occur I was told that it would probably be when the engine changed from petrol to LPG before the mixer (or whatever) had been warmed up properly. Any other ideas? The units are both hard starting cold and will backfire through the carb. Dec 19, 2004 · whilst I was running on lpg at 90mph down hill wind at my tail ( very fast but quite a low load). That being said, I do have an electrical engineering degree and I've toyed around with car electronics before, so I do have a capacity to learn, but there are so so many people talking trash and The ECU light is not on, i don't even know whether the ecu light actually works. Hi, does anybody know about lpg conversion of volvo 244 gl with a carburetor system (b21A) or any photos or links helpfull for the conversion (1 month ago I put on lpg on may car and it blows up the air filter box 5 times :-( Aug 25, 2008 · Old coils can also cause backfiring. I have had the car for a while and ever since the timing belt was done by the previous owner, it would blow up the air box many times a day. They often blow to pieces when there is a backfire. airbox clips 9. The car was modified for a dual fuel system a long time ago m, lpg & petrol. 3 with LPG single point setup for about 15K miles. Airbox explodes and thats the end of that. Cranked the car over with the LPG disabled and it did fire up but wouldnt run properly due to there being no airflow through the MAF and all sorts of air and vacuum leaks now. From a cold start it Hello. Nov 27, 2009 · Back fires on LPG engines is mostly due to ignition crossfire or a lean cylinder. Today, it back fired and has blown the airbox apart! So, first question is: How long do plugs/leads last? Second question is: Has anyone got LPG and a K&N/pipercross etc cone filter? Thanks! Feb 1, 2012 · There appears to be regular running defects apart from the BACKFIRE that blows the airbox apart. 45 LSD, Pacemaker Comp Extractors, 2. Thanks in advance Pete Oct 3, 2007 · I looked into doing this with my car (lpg v6) and decided against it. This was mainly when accelerating under load. If you get a backfire on LPG it will normally "backfire" into the airbox and if it has "normal" solid metal clips holding it together it can literally blow the airbox to pieces. Thread starter tiv68; Start date Aug 19, 2013; T. Not uncommon with LPGs, higher spark plug wear is price you pay for big savings on petrol bill. If the fault is still apparent, test drive the vehicle with the scan tool hooked up and record the stepper motor count. Driver dropped off a passenger and proceeded to move off - quite a considerable blowback, engine stalled and took some 15 seconds to restart. Aug 17, 2012 · LPG Backfire. Do you have an 'alternative fuel' (- LPG/CNG) installed? Is the airbox base and lid now secured again? Undo the few clamps holding the intake pipe on and check that there is nothing loose inside. Australian Ford's Discussion. . May 26, 2008 · Had our first lpg backfire on our NL Paj today - approx 8 months & 20k kms after the (vapour) system was fitted. What issues has the car got ? or has the airbox not been replaced yet. This morning I tried to pull away on LPG whilst lumpy and had two backfires in 10 seconds! Check the howto section on this forum, there used to be a how to topic on how to use a napisan container's lid to put on your airbox. On the side of my lpg mixer is 2 connections for the gas to go out to the inlet manifold. This morning I tried to pull away on LPG whilst lumpy and had two backfires in 10 seconds! Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import has anyone put a pod filter on. 8K views 6 replies 5 participants I recently had my first LPG backfire on the way to Hemel Hempstead to see my brother (something always goes wrong up there- i dont think the 90 likes it much ) This destroyed one of the filters, but after trawling Hemel's motorfactors with the removable end plate of the airbox and the one good filter for comparison i was able to get a much Aug 16, 2012 · Hi all! I'm not sure this has to do with the LPG system but am guessing it does. 5mm. . So it appears that LPG is igniting within the manifold and escaping backward. After the leads and ford plugs no probs. yeh id be listening to the guy at autobarn hes not talking out his a***. this stops the airbox smashing. My question is for the guru's of air control etc or anyone who has one. Ive just got a backfire valve to fit to my airbox to hopefully stop me having to buy new boxes after a particularly nasty backfire when running on LPG. So any poor tuning of the motor will show up as poor running and back firing on gas. 5hour drives, but only on LPG, never happens on petrol. May 6, 2008 · LPG is sensitive to bad spark so try leads,plugs,coils yet will run fine on petrol. The intake manifold fills with LPG until the pressure equalises then you give it a crank & *BOOM* - bye bye airbox. I. What causes this backfiring and how can I prevent it happening again. Check for air leaks within the intake manifold system, from the air box through to the manifold gasket. Instead of fitting a BPR6EFS-15 did you fit a BPR7EFS-15. 0l 1990 Sov). after putting the airbox back together the car runs fine but I am most concerned that this will happen again. tiv68 In Third Gear. Jun 6, 2007 · Low tickover on Petrol, now lpg too after LPG backfire Jump to Latest 2. Don't know what the cause of the backfi 🚗 USAGE - This valve protects air box from damage in case of backfire. It. It is a 6g74 Exceed. LPG plugs should be one step colder than a petrol plug and gapped to . ginger Guest LPG Backfire Feb 19, 2014 · Mine is all under the bonnet and facing the grill as its a old holden but even at 220kms per hour on lpg with a 3 inch air intake unrestricted facing forward its still not missing a beat with the slight amount of forced induction caused from such speed. So running on petrol might not work too good, try running it on petrol and see if all is still ok. Iridium plugs will give no better performance but they will last 3 times longer than a standard plug when running LPG Aug 11, 2015 · For LPG you need to use a plug that is 1 heat range colder to allow for the increased heat in the combustion chamber. Which Oct 12, 2019 · Due to the different burn characteristics of petrol verses lpg . 1 for petrol. Old plug wires that crossfire, or a cap with carbon tracks will cause the wrong cylinder to fire. Best to source the problem and fix it instead of bandaids, if the system is an impco type backfires can detroy the diaphragm in the mixer. I also sometimes get engine light come on for minutes at a time, recently it's been for full 1. That is why they use coiled spring clips on LPG airboxs, when you get a backfire the top of the airbox will lift up due to the give in the springs and will vent the Dec 5, 2024 · Safety valve for air filter USED IN LPG CONVERSION FOR MIXER TYPE SYSTEMS. I found an adapter on ebay (POD AIR FILTER ADAPTER - SUITS MITSUBISHI + MORE ) It just seems like a cheap option to replace my airbox that was blown up by lpg backfires ( I solved the backfire issues by insulating the leads) I was thinking I could use hose between the adapter and the filter to position it where there is less chance of ingesting water as well. Occasionally you get a bad lead/plug or I had a coil pack go once, and if all is not well with the spark you can get a backfirewhich promptly blows the air box walls apart. Any help will be much appreciated. Since the gas install is only a few months old, I would suspect the plugs and leads are still all good (had them all changed when LPG went in). any help appreciated Find many great new & used options and get the best deals for Genuine Ford EA EB Ed NA Da Airbox LPG Backfire Springs FREEPOST in Australia at the best online prices at eBay! Feb 3, 2008 · I've got an NG900 2. So in particular I ask anyone who does have a GenIII I bought my discovery last year with lpg installed, but noticed the airbox locating lugs were broken. Nov 23, 2019 · Now check the PCV (positive crankcase ventilation) valve that can often be damaged by an engine backfire. 🚗 PROTECTION - backfire can cause destruction of the airbox where this simple Backfire safety valve will save money & inconvenience caused by damage. Good luck with it. Cars backfire on gas but run fine on petrol because gas needs a better spark to light the fire, and because the mixer is mounted before the T/Body the inlet manifold is full of an explosive fuel air mix so a stray spark when an inlet valve is open and BOOM. I even bought a new genuine air box & filter at the same time as the plugs/leads. Oct 30, 2009 · hi all,my v6 vt on gas is back firing through the air box and has destroyed the box now. Feb 17, 2012 · The airbox on my 1994 Classic has cracked (I think for a large backfire when it ran out of LPG a few months back) and need a new one. also LPG backfires if running to lean so try oxygen sensor or poorly fitting air inlet hoses or filter. this is why some people on lpg have the spring clips for the airbox as opposed to the normal ones. Kept doing big damage to his airbox - got it sorted with a more complex system which involved a unit per cylinder - improved performance loads too. It was backfire severely so many times just after I setup the LPG, that I needed to replace a lot of air intake parts. LPG Tech im new to lpg i have a 3. The problem is only very intermittent (ie. Reply 1: Yes it can and so would too advanced ignition timing. Jul 26, 2005 · Hey guys, I want some recommendations as to whether I sould gas my GenIII. i recently went on a long drive (2000klms) and it seemed each time i had to climb a hill it would backfire but it was fine while sitting on 100 on the highway. I notice the LPG has Nov 11, 2003 · A friend of mine back in the uk (much less popular with lpg) had a Merc C36 AMG on gas, but it was a single unit - ie single point, for all 6 cylinders. you should be able to get one from most lpg fitters. Jun 27, 2008 · We have 2 units in the shop with the same problem. It has the later model serpentine belt 3. Aug 25, 2008 · The guy who installed it had put like rubber straps over the airbox so that if it did backfire, the top should just pop off. 00 lower part of airbox 300-500 it varies. Any other bits that may break because of a backfire. Due to me not knowing much about the characteristics of a backfire, my questions is where on the airbox to fit this? As the air comes in through the top Jun 22, 2004 · Please take pity on a UK Fairmont owner (maybe the only one). Thread Tools. Nov 25, 2021 · pajero owners club,pajero,owners,club,pajero club,pajero insurance,insurance,pajero website,car,cars,mitsubishi,yellow diamond,four,4,wheel,drive,off,road,import Ik denk dat 'Pat' het erg duidelijk uitgelegd heeft. When they get to the stage of being on their last legs,they cause all sorts of problems like misfiring or backfiring and hard starting and bad running. So, now im desperate for a new throttle body elbow and air filter box! UPDATE: Got the follwoing quotes from Istanbul Autosport this afternoon: Airbox Top: 165TL Mar 2, 2008 · The system was in place on my Disco when I bought it and when she backfires sometimes I need to replace the airfilter lid, sometimes it just re-seats itself. Aug 19, 2013 #1 Welcome to the Australian Ford Forums forum. I can't remember if they are the correct part numbers or not, but used them as an example . when I floor my 4. Reply 2: is this car on LPG?. ELwilldo Discussion starter · Dec 8, 2004 Jun 14, 2011 · Also that backfire may have damaged the vaporiser's diaphragm putting a small hole or tear in it (time and neglect can do the same) so you'll end up losing LPG (consumption goes through the roof) and you lean out the mixture making backfires even more likely. Oct 31, 2011 · YEAH backfire valve goes in the top of the air box, its basically a blow off device, if you get a backfire the valve pops up & vents the pressure. EL Backfiring on LPG. Had an LPG Backfire on my commy a while ago, while bedding in new rotors. Ik zelf hem een nieuwe lpg installatie laten inbouwen na aankoop. As some of you are aware I have a GQ its the 4. Oct 12, 2024 · 🚗 USAGE - This valve protects air box from damage in case of backfire. Too many backfires will damage air flow sensor as well. Apr 13, 2023 · Hello again everyone, I was hoping someone could help me figure out a potential cause of lack of power in my 1fz-fe. backfires through airbox could it be plugs or leads. E-Series Falcons Dec 8, 2004 · LPG Tech. Heard a massive bang from the front end (airbox blowing apart) Aug 17, 2010 · hey guys, thanks for the responses. It exploded the air box and made the engine run very rough at tick over. If the Airbox looks OK open it and check if the airfilter is still complete. Only 1 is used. so therefore if it happened with a pod id be pretty worried, you would at least do some serious damage to the filter iv got a 95 xg ute with 275,000 on the clock was told by ezygas it has the wrong spark plugs and wrong leads in it causing it to backfire (air box is stuffed and 2 weeks ago took my rocker cover out aswell) and be down on power and misfire these were replace 6 months ago by another mechanic as he said it was the same reason its has 8mm bosch May 10, 2024 · VX II 3. plugs, wire set, rotor). As everyone's aware, the price for fuel is unbelievable. then i tried by turn on the power button which makes the car kick down a gear sooner and rev longer iv got a 95 xg ute with 275,000 on the clock was told by ezygas it has the wrong spark plugs and wrong leads in it causing it to backfire (air box is stuffed and 2 weeks ago took my rocker cover out aswell) and be down on power and misfire these were replace 6 months ago by another mechanic as he said it was the same reason its has 8mm bosch Jul 18, 2012 · Hi, Same Issue i suspect, how hard is it to tune the lpg? i have a little Gastec fuel processor with led gauge mounted to the passenger side strut housing near the airbox which appears to have two adjustment interfaces , i didnt know all this, i just started repairing what i thought was a busted airbox-intake to manifold flexi thing. The LPG regulator tests good. 🚗 PROTECTION - backfire can cause destruction of the airbox where this simple Backfire safety valve will save money & inconvenience caused by damage. So when the airbox wants to blow it just shoots the lid off instead of destroying the airbox I think it was for the VS series airboxes, but adapt it to the VY series. There is some play in the throttle shafts of the carbs. As some of the other posts have stated, there are ways to minimise backfiring, but I haven't been able to completely eliminate it. I smelt smoke, and opened the hood and noticed a small fire catching on the sound proofing stuff under the bonnet, also the lpg inlet tube that blew off had a little flame coming from it. 7 mm not the average 1. Sep 30, 2008 · LPG air box problems I have experianced simular problems, what i done was cut the front out of the air box on the clean air side an put rubber over it on the out side only held down at the top an over lapping the cut out square so when it back fires it opens up an closes again. The air flow meter measures the amount of air flowing in & measures out the fuel required. The LPG system starts in petrol and then switch to LPG. Since I bought the vehicle the Lpg side of things has never worked so I just run it on petrol. nkgcup azsehyy pkp gcrukcwe xabnh ofryfo weyrw czkws jdce mkrheb kactoqh jpv jcge xelhz xnjmos