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Discussion Starter #1
Does an LPG system use the signals provided by the petrol ecu to control the log fueling or does the log ecu decide all by Itself?

I ask because if you got the petrol ecu remapped will it also work for the LPG?
 

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Discussion Starter #2
Not log. I meant lpg
 

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Depends on what type of LPG you've got fitted. If it's an open or closed loop induction system, then no, it won't have anything to do with the petrol ECU, other than having a box to stop the petrol injectors from firing and fooling the petrol ECU into thinking it's still driving the injectors.

If it's a sequential system with individual LPG injectors, then these usually take their injection timing from the signal from the petrol ECU to the petrol injectors. The actual amount of LPG injected should be controlled by the feedback from the lambda sensor, rather than the signal from the petrol ECU though. You're probably best talking to the LPG installer about implications of chipping if you are running a sequential system, just to be on the safe side.
 

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Discussion Starter #4
Cheers mate. Not got the van yet or had the conversion done. Am fact finding and planning. The van has the 24valve VR6 in it which runs on the super unleaded so am thinking a coastline system might be appropriate as well.
 

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Discussion Starter #5
Cheers mate. Not got the van yet or had the conversion done. Am fact finding and planning. The van has the 24valve VR6 in it which runs on the super unleaded so am thinking a flashlube system might be appropriate as well.
 
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