EFIDynoTuning Forum

Greetings,

I'm looking at giving A9L2 a try but I cannot locate the injector data for my Accel 150819 19lb injectors. Looking at the REQUIRED VALUES I need at least:

SP**AHISL - Injector High Slope
SP**ALOSL - Injector Low Slope
SP**FN389 - Injector Breakpoint
FN367 - Injector Offset

I have not yet gotten to the SP**FN036 MAF Transfer and FN2200 Spark Table parameters yet so advice there is welcome. I'm not looking for power increase though that's usually nice. More so a consistent idle, better hot start and less-harsh initial throttle response.

Thanks for the assistance. - Kirk

Vehicle Info: 1989 5.0 HO motor transplant in 1967 Cougar, Ron Francis harness, ~40psi at the fuel rail. AFAIK stock with headers, GT-40 intake and 1991 AOD trans. I have both A9L and A9P ECU's available. Quarterhorse and Tuner-Pro RT.

No biggie

Start with the stock a9l2 just as it is.

If you have a stock maf then its simple just dial in the injectors.

You have to do so from the top down so first got wot and make sure fuel from 3k to redline is consistent. Apply that correction to the entire maf curve and the high slope. Congrats. Injector linear flow is dialed in.

Remember anytime you change the high slope you have to adjust all SP** parameters too.

Then adjust the low slope, breakpoint and offset to get the lower areas of the maf fuel error as consistent as you can.

Details are in the fuel write up

Enjoy.

Thank you! And I stumbled across the EEC-IV Dashboard in your DECIPHA*.adx while working with my existing A9L.bin. Very Nice! I have lots to learn. Fantastic you have this info up to help.