Quote:
Originally posted by Chris_H
Well I've got about 70,000 give or take a thousand on the motor. Still a pretty good motor in my eyes. I have an A/F ratio gauge in the car, but with the FMU, I seriously doubt its running lean. When I nail it, the 2nd ro 3rd green light on the A/F gauge is about where it sits. Its only on deceleration that it back fires, not between shifts as SRV1 says his does. I have the stock mass air meter in it still because I can't get the car to run right with the 73 C&L. I am heading to Phoenix today, so I will talk with Tom at All Mustang and see what he has to say. I will be back tomrrow, so if you guys still have suggestions, let me know please!!
Thanks a lot,
Chris
|
sorry Chris, but i failed to read your mods!
anyways, sounds like a timing problem to me or the FMU needs to be reworked. it may be running too rich and causing it to ignite with unburnt gas in your exhaust.