My '92 SSE */c has always had a rough idle, and it'* become worse recently. I've done several things to attempt to fix the problem, but nothing has made a difference in the idle quality.
I've read that there'* an idle learn procedure for some other cars, or a Tech1 scan tool can be used to do it, but do any of you know whether or not performing the idle learn procedure is required to yield a smooth and stable idle? My understanding is that after the battery is disconnected and reconnected the system learns on its own over time anyway, so does performing the idle learn procedure just shorten the required learning time, or does it do something that the system will never do on its own?
Please comment if you know with certainty.