I HAVE A 1994 CHEVY BLAZER FULL SIZE AND THE PEOPLE THAT PUT MY DUAL EXHAUST ON DIDNT PUT A O2 SENSOR IN AND I CANT FIND ANY WIRES THAT WOULD MATCH THE O2 SENSOR I BOUGHT,I BELIEVE THE PEOPLE CUT THE WIRE OR SOMETHING SO I NEED TO FIND A WAY TO HARD WIRE THE UNIT CAN ANYONE HELP ME
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1994 Chevrolet Blazer
Question: I NEED TO KNOW HOW I CAN HARD WIRE AN O2 SENSOR
Answer #1patrick mannion from Greg Solow's Engine Room, July 02, 2011, 17:10Master
You can't hard wire the O2 sensor it is needed for fuel trim/fuel control. The wires have got to be repaired and any exhaust shop will be able to put an O2 sensor flange in the exhaust system for you. It will improve your gas mileage as well.