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If your 1997 Mitsubishi Starwagon has been converted to run on LPG (liquid petroleum gas) and is having trouble switching back to petrol, there could be a few different issues at play. Here are a few things you could try:
Check the LPG/petrol switch: Make sure that the switch is in the correct position for the fuel you want to use.
Check the fuel lines: Make sure that the fuel lines for the petrol and LPG systems are not blocked or damaged.
Check the fuel pump: The fuel pump may not be working properly, preventing the vehicle from switching to petrol.
Check the fuel tank: Make sure that the petrol tank is not empty and that there are no blockages in the fuel lines leading to the engine.
If none of these solutions resolve the issue, it may be necessary to have the vehicle diagnosed by a mechanic. They will be able to identify the cause of the problem and recommend the necessary repairs.
I take it that you have a duel fuel system where by you can switch from fuel to gas by a switch on the dash
the solenoids will shut of petrol or gas depending on the switch position
Normally it is not connected to the ECM as it is not something that the control module has any thing to do with
THe only action that would involve the ECM is the readjustment of the air/fuel mixture as it reads the HO2s and O2 sensors after you change fuel delivery systems
I would involve the shop that fitted the LPG system as it could be simply be a bad connecting in a wire or loose ground wire
Don't know the vehicle at all, but perhaps the gas (I assume you mean something like lpg) gague is sharing the same power set up, ie when switch to gas, the power or sensor wires are then redirected elsewhere, so the fuel gague drops off, till returning to petrol.
See this scenario on a couple of lpg cars here in uk. All lpg cars I've seen do not share a gague though.
if its a 2010 on no spring, they have two useless little bits of plastic that depress and go flat from the heat and then dont pop the door , another way to ripp us off !
Check the compression using a compression tester you can buy at a parts store. The compression has to be fairly high in all cylinders to start up the engine. If not you may have bad rings . Check plugs and wires too.
hang onto the hammer for abit.... i'm presuming the gas was not drained... it has a tendency to "gum" up after awhile... i can't recall if there is a product you can put in your tank to remove gum from the gas... but one thing i would try is gas line antifreeze... it's got alchohol in it which sucks up water in the gas... that may help till you get fresh gas flowing thru it.
One other thing... when you turn on the key... are you able to hear the fuel pump ?
You will have to recheck that all the wires were reinstaled.The noise is the fuel pump.The lpg system has its own fuses so you will have to check them also.The only thing you touched was the battery so the problem is there somewhere..Earth wire is also important just double check all the things you undid.Let me know how you go
LPG fueled vehicles are inherently "cold-natured" due to the temperature drop when the "liquid" gas under pressure reverts to gaseous state causing a frost build up around nozzles and jets. The only solutions are to start on pump gas until up to operating temperature and the switch fuels, or allow the engine to warm up to operating temperature on LP gas before driving, thus avoiding the stall point.
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