fastfiat81
Mr. Speed
1986 with stock fuel injection 700 miles on the new engine. I’m working through an issue that has cropped up. The car has been running flawlessly until this point. The engine idled and accelerated super smoothly. Then I washed and waxed the car. I didn't hose down the engine bay or even open the engine cover. Took it out a day later and it has a miss and doesn’t accelerate smoothly. Died at idle.
I have replaced the coolant temp sensor with a new Bosch unit. The wiring checks out between the sensor and the ECU. All FI grounds are good. Cleaned the FI ECU, TPS and MAF connectors with deoxit. I pulled the distributor cap. All looks good. Plug wires are tight. Cleaned the reluctor and connector with deoxit. Spark plugs look perfect. Fuel pressure is a constant 36 psi.
I even rebuilt the Bosch ICM with a GM HEI module (always wanted to do this) and replaced the coil with a MSD Blaster 2 and removed the resistor.
The car still has a slightly rough idle and a good miss on acceleration, but it doesn’t die at idle now. I am going to reset the timing later this week. I’m coming to the end of things I can think of. Anyone have any thoughts?
Thanks-
I have replaced the coolant temp sensor with a new Bosch unit. The wiring checks out between the sensor and the ECU. All FI grounds are good. Cleaned the FI ECU, TPS and MAF connectors with deoxit. I pulled the distributor cap. All looks good. Plug wires are tight. Cleaned the reluctor and connector with deoxit. Spark plugs look perfect. Fuel pressure is a constant 36 psi.
I even rebuilt the Bosch ICM with a GM HEI module (always wanted to do this) and replaced the coil with a MSD Blaster 2 and removed the resistor.
The car still has a slightly rough idle and a good miss on acceleration, but it doesn’t die at idle now. I am going to reset the timing later this week. I’m coming to the end of things I can think of. Anyone have any thoughts?
Thanks-