Engine Performance problem
1995 Ford Escort 4 cyl Two Wheel Drive Manual 110k miles
Hi. I have a 1.6 16v escort zetec. Poor idling, sometimes sits with revs too high on tickover sometimes hunts and often stalls at junctions. If I remove the connector from the throttle position sensor the engine runs fine (though this is maybe because the removal is being compensated for by the emu?). I have tried replacing the throttle sensor and this makes no difference. I have cleaned the idle control valve. Cleaned the crankcase breather valve, checked to the best of my ability for vacuum leaks in the multitude of vacuum pipes and carefully checked/cleaned the air flow meter. Through research I have come across other potential causes listed below. Can you please tell me if any/which of these are the most likely cause?
1. Exhaust o2 sensor
2. Coolant temperature sensor
3. Road speed sensor
4. Pulse air injection solenoid
Is there anything else you may be able to add to this list.
This appears to be quite a common fault with a lot of possible causes.
have the same problem?
Sunday, April 19th, 2009 AT 10:54 AM