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Bad air temperature sensor? Not likely, IMO 700 1990

uid 18083's pic
posted by  lucid on  Fri May 9 00:48 CST 2008
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

I side with Texan745 on this one. A vacuum leak could make the mixture too lean until the O2 sensor comes online (in about a minute) and reports the lean mixture, then the ECU corrects for it.

In 5+ years of owning a Rex/Regina car—resulting in almost daily scans of this forum—I have never experienced (or seen reported) any confirmed Air temp Sensor or ECU problems.

A bad air temp sensor would set a code and the CEL/MIL light. The "running better" result is probably subjective anticipation after spending money.

IMO, it's the normal age/wear things more often than the electronics.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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