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My check light is on.my car is showing DTC41.

(1990 Buick LeSabre)
in New Castle, IN on July 29, 2013
the camshaft sensor and EGR valve have been replaced.
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Popular Answer
of Greg's Orange Auto on July 30, 2013
seek a proper diag and est from a good mech as ther is a diag procedure to follow. poss the circuit has issues and not the sensors
on July 30, 2013
thanks. good to have a resource to go to.
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