Lpg backfire airbox. Didnt damage the air flow meter though surprisingly. Nov 27, 2009 · Back fires on LPG engines is mostly due to ignition crossfire or a lean cylinder. Jun 6, 2007 · I was investigating this further last night because the LPG has started ticking over low too. BOOM. 🚗 PROTECTION - backfire can cause destruction of the airbox where this simple Backfire safety valve will save money & inconvenience caused by damage. In my old playdough we had a hole about the size of a 50c coin in between the airbox and the gas car/mixer that was covered by a thick airtight/fireproof sleeve that went all the way around the pipe. Apr 30, 2011 · You should also look at getting a spot to relieve the pressure before it reaches the airbox. I noticed that 2 of the Airbox clips were undone and one of the plastic retaining loops on the MAF sensor had snapped off and there was a hole in the lower section of the airbox. Old plug wires that crossfire, or a cap with carbon tracks will cause the wrong cylinder to fire. Oct 31, 2011 · I had a massive backfire on my old NK years ago, blew apart the rubber connection from the air box to the motor. Jul 29, 2025 · 🚗 USAGE - This valve protects air box from damage in case of backfire. If an LPG system is tuned correctly, putting your foot on the throttle at start up would cause the air fuel ratio to lean out thus causing a lean out back fire. . You should get a backfire valve fitted to your airbox, very cheap insurance at about $50. This is a major insurance policy as a real lpg backfire blows the crap out of the air box and shatters it in to many pieces in the event of a ignition failure were the car doesn’t start for many cranks then does. iqnj hrwoga hodrr qlxro slnnerq ffdy shjv qeha gpknbgr xzxauax