Hello, I’ve searched and haven’t been able to find a solution to my problem.
I have a ‘93 Mustang GT. It starts and runs great…. for 20 mins that is. It seems when the car enters closed loop the idle drops and surges up and down. I have a new IAC, I’ve cleaned the MAF and TB. I’ve smoked the engine checking for vacuum leaks. I’ve checked and cleaned the ECT Sensor. I’ve disconnected the o2 sensors which I thought helped but ended with the surging idle. I’ve done the base idle reset as well.
I need help, I want to drive the car. Any guidance would be greatly appreciated.
I have a ‘93 Mustang GT. It starts and runs great…. for 20 mins that is. It seems when the car enters closed loop the idle drops and surges up and down. I have a new IAC, I’ve cleaned the MAF and TB. I’ve smoked the engine checking for vacuum leaks. I’ve checked and cleaned the ECT Sensor. I’ve disconnected the o2 sensors which I thought helped but ended with the surging idle. I’ve done the base idle reset as well.
I need help, I want to drive the car. Any guidance would be greatly appreciated.