I think the compuer requires a number of starts to adjust itself.

I think the proceedure was to let warm up then turn it off, then start it right back up and wait till idle stabilizes then off ...and repeat 3 times or more.

In other words, it takes awhile to adjust. Give it time

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that's for idle speed not ignition timing, and I might be confusing this with some other vehicle but it is worth a try.

Last edited by generation_one; 08/17/08 06:24 AM.
1989 5 door montero 3.0 auto
stock original Japanese
about 200k miles