JohnM70

JohnM70

Well-Known Member
LZIR Despatch Agent
Chaps,
I have a sniff of a 99/V P38A that has some problems, chief of which is that it don't run.
It transpires that at one time it had lpg but persons unknown have removed bits of it (not sure how much)

This is a very cheap motor and I'm not 100% convinced it's what I'm after anyway...

How hard is it to remove the LPG system and revert to petrol?

TIA
 
Straightforward. The gas nipples are drilled into the inlet these will need plugging. The injector wiring is interupted. So one injector wire is cut then 2 wires from the lpg loom are connected to each wire. The coolant lines are cut to incorporate the vapouriser. The lpg loom will have a fused live wire( somewhere!) The rest is independent of the petrol side. The tanks are normally closed so shouldn't leak when you cut the pipe.
 
Pretty much what he said!

LPG systems are very simple in their operation, they interupt the injector signal, and fire an LPG injector instead, but feed back to the Engine ECU that an injector has fired!

Now there are two main types of emission control on LPG systems - OBD based and O2 sensor based......so as well as removing the injector interupt wiring, there may be wiring to the O2 sensors, either via piggybacks or tapping into the Engine ECU Loom, or connections to the OBD inputs/outputs to the Engine ECU wiring loom too.
 
I'm of the view that I need a working vehicle first, before swearing at a broken P38
 
I would join the wires that were used to insert the gas injectors into the petrol injector system . Should give you solely petrol injectors
 
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