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ECT failing without code 123? 200

posted by  Chrissij on  Mon Aug 9 14:38 CST 2004
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last visit: Mon Nov 22 04:11 CST 2010
[RELATED]

A faulty thermostat will cause a run rich problem. On a 1990 though, the ECM is the most likely culprit. Try unhooking your 02 sensor and see if it runs better. Also, check your fuel pressure regulator.

Chris






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New ECT failing without code 123? [200]
posted by  someone claiming to be Jon P  on Sat Aug 7 15:51 CST 2004 >


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