Just doing some research, have recently completed a Compressed natural gas conversion ( Methane ) on my Barra 4L powered BA wagon utilizing a injection system that piggy backs off the factory fuel injection, it has its own computer etc. Am having trouble tuning the thing, my gut suspicion is the oxygen sensor fitted to the petrol engine is not wide band enough to provide an adequate sampling rate signal to the gas control
ecu.
1 - Does anyone know if the BA falcon has a wide band oxygen sensor fitted, if not, would the petrol
ecu tolerate a wide band sensor being installed without flashing the
ecu ?
2 - Am thinking of running a sepparate wide band oxygen sensor just for the GAS
ecu to provide the necessary sampling required.
All constructive input if appreciated, and before anyone comments, I refuel from home with a refueling appliance from a town gas supply, and given the cost of petrol in Australia right now its a very attractive conversion for me at the moment.
The tank in the vehicle is a 80 litre, holds approximately 25 cubic meters of natural gas full at 3600 psi, i get approximately 220km out a full tank and costs me 26 dollars to fill. Its the equivalent of 27 liters of petrol.
The conversion so far:
https://www.youtube.com/watch?v=pM330nJRBY4&t=17s
The refuelling appliance control interface:
https://www.youtube.com/shorts/8WOn-Hizar0
Thanks again