Okay, that sounds like an interesting project. From your description it sounds like the injector flow rate is higher than required for this application. It flows so much extra fuel that it is like you are at full throttle. You need the flow rate of a tiny perfume dispenser but the current injector is a garden hose.
What did the EFI unit come off of? I suspect you will need to lower the fuel pressure or find a lower flow rate injector, or find someone who can remap the current ECM to work with that engine or more likely a combination of the three. Lower pressure will reduce flow but the lower pressure will not atomize properly.
You could also look at the resistance of the current TPS between 0% and say 5% and see if you can stretch that out using a different resistor.
Tuesday, April 11th, 2017 AT 12:31 PM