Dear Friends,
I have been struggling with 'cold start' in my Toyota corolla XE Saloon 1998 - Manual transmission (4EFE) for quite sometime. A mechanic fixed the problem by cleaning the throttle body, however the problem resurfaced, despite replacing fuel pump, temperature sensor, spark plugs. This time mechanic replaced the entire throttle body with a different one, but this has a constant RPM even after engines reached its normal temperature, which also means more fuel consumption (looks like a quick fix). I am looking for a competent mechanic/auto electrician in Islamabad/Rawalpindi who can resolve this problem.
Some key facts are below:
1. Car hesitates on cold start./rough idling until normal temperature is reached.
2. Once engines reaches normal temperature, rough idling stops, even after restarting engine.
2. Engine occasionally shuts down while driving which is very dangerous (only when neutral).
3. Occasional missing.
4. Engine does not give any smoke.
Kind regards
Wasim
