russian wrote: ↑
Mon Feb 04, 2019 3:18 am
How does your wiring look like? Do you have individual coil and injector control? Logic coils or power transistors driving them?
currently I have 12 logic coils (gm D585 copies) running waste spark, so 6 logic outputs from the ECU. Its wired to allow 12 as the ECU is capable HW wise to drive 12 but fw does not currently allow it so I have the wires share ECU pins for now hoping the FW changes.
12 injector pins. These are pretty big injectors, ID1000 that run a max of 35% duty cycle so they only spray into a moving air stream at power. This make low power a challenge as the its pretty much completely in the non-linear range at idle.....calculate the required fuel in grams then read fuel temp and differential pressure (fuel rail to intake runner) to get the current injector flow rate, then read the correction for the nonlinear stuff. Its a copy of the GM stuff the best I could work out and Jim revised the low level enginelab fuel control FW to allow this for me.
I'm sure it would run with a simpler slope/death time setup but this makes it way less sensitive....like the fuel pump was failing and I didn't even realize until the fuel pressure was down to about 10psi from the 58 it was supposed to be. A 10% trim or coolant correction means 10% more fuel is actually delivered. It just makes life easy.
How does the ECU plug(s) look like - do you know part numbers etc?
ECU Header: Molex MX123 31387-2037, 73P GRAY key
Harness Plug: Molex MX123 34566-0203, 73P GRAY key
ECU Header: Molex MX123 31387-2001, 56P BLUE key
Harness Plug: Molex MX123 34576-0703, 56P BLUE key
zip of my current pinout attached
Do you have cat converters on this car? I assume not really?
Pretty much I am asking if I can visit with a rusEfi and start your engine by simply swapping your EngineLab one day?
In theory yes. Clearly there would be some time to get my tune info converted to your inputs, the throttle needs to be working, fuel pump needs to come on, stuff like that so its not a 1 hour job and not likely a 1 day job......but its probably possible and once the valve seat is fixed and the engine runs again it could probably be done.