1992 Eagle Summit Changed engine, oxygen sensor problem

1992 EAGLE SUMMIT
220,000 MILES • 4 CYL • AWD • AUTOMATIC
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ACHAGOOSEE
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Mechanic dropped a 1.8 L. 1994 Eagle Summit engine from an automatic FWD, into a 1992 Summit AWD replacing a 2.4 L. failing engine. Everything OK except oxygen sensor, reads OK in shop but reads zero on highway. Repaced 3 times, relocated sensor, still the same. Ideas??
Apr 7, 2008 at 9:28 AM
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2CARPRO JACK
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Have you compared the sensors from each engine to see if there is a difference? Might be time for a pin to pin wiring check with a meter to be sure the wiring is good.
Apr 9, 2008 at 7:42 AM
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