my check light is car is showing DTC41. on 1990 Buick LeSabre

the camshaft sensor and EGR valve have been replaced.

by in New Castle, IN on July 29, 2013
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1 answer 1 comment
ANSWER by , 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
COMMENT by , July 30, 2013
thanks. good to have a resource to go to.