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Hard Starting and engine stumble until .... 200 1993

uid 18083's pic
posted by  lucid on  Wed Feb 11 00:44 CST 2009
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

Look for intake air leaks after the AMM, making the mixture leaner than the ECU thinks it is for that cold temp. Once the engine warms a little, the ECU-O2 sensor can compensate to some degree, masking the "false air" roughness.
--
Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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