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91 240 CEL Light On After HG Change

posted by  Dellaone on  Sat Apr 5 18:04 CST 2014
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last visit: Fri Aug 15 19:30 CST 2014
[RELATED]

I replaced my 1991 240 sedan head gasket due to oil leakage, (marking it's spot was an understatement). After replacement, the CEL was on. I retrieved a 411 code (throttle position sensor). I purchased a new, same part number sensor, but I am unable to clear the code, and I am beginning to suspect the plug or wiring. The Haynes manual appears to be useless for this. Does anyone have a good diagram or suggestions on troubleshooting this problem? The engine itself still runs great, just like it had before, so I know there must be an open or other wiring anomaly.

Thanks for any insight!

Dave






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