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Re: Drivability issues in 89 SPG when cold Posted by RS [Email] ![]() ![]() ![]() In Reply to: Drivability issues in 89 SPG when cold, Nathan Bracko, Tue, 16 Nov 2004 12:30:41 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The ECU doesn't look at the O2 sensor signal until a few minutes after starting. Chances are that you have a marginal AMM and/or a good vacuum leak. O2 sensor is probably OK, although they can be DOA out of the box on very rare occasions.
Your high idle makes me think that it might be a combo of the vacuum leaks and a marginal NTC sensor. The bad AMM might be a contributor, also. You can check the NTC sensor resistance at various temperatures. Do a search for NTC on this board and you'll find a few postings in the last few years with the resistance values. If you have a Bentley, it'll have them, too.
posted by 65.217.4...
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