I have had a fluctuating high idle for a couple months now. It wasn't that bad after I changed the o2 sensor. It mainly just idled around 1100 with an occasional bouncing. The other day I tried cleaning the ICV out real good and that made the surging idle more pronounced (constantly bounces between 900 and 1500 when warm). When I unplug the ICV, the idle goes even higher.
Of course, I thought of vacuum leaks, but the shop I took it to said the smoke test yielded nothing.
So, my question is, what are the chances of my ICM being the culprit? Are there other things I should be looking into?
EDIT: 1986 325
Of course, I thought of vacuum leaks, but the shop I took it to said the smoke test yielded nothing.
So, my question is, what are the chances of my ICM being the culprit? Are there other things I should be looking into?
EDIT: 1986 325
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