Posted June 9, 201014 yr when i first start my escort van 2.0 zetec the revs seem to drop around 500rpm then it cuts out but when started again its ok. ive changed the idle sensor but its only happenend since ive changed the cat!!! could it be that????
June 9, 201014 yr If it was okay before you removed the cat, then something relating to that job is most likely the cause here.
June 9, 201014 yr Sounds to me like the ECU may be re-learning the idle point. You could try an ECU reset, but it will probably sort itself out in a few days.
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