Review on 🔌 Michigan Motorsports TPI TBI 3-Wire Heated Oxygen O2 Sensor Harness Adapter - Compatible with Iroc by Terrance Haralson

This product is perfect - I don't know what the other reviewer is talking about. My 1988 GMC truck had a 1 wire unheated oxygen sensor - this harness was a PERFECT match for a Walker Products 250-23005 (or ACDelco AFS74) 3 wire oxygen sensor - the connection is waterproof, dust proof and uses the existing 1 wire Mating connector with my truck's standard O2 sensor connector. The ground and power wires are long enough to route away from hot exhaust system components and reach multiple power/ground points. Would recommend to anyone driving older vehicles (like most late 80's/early 90's TBI-GM cars and trucks) that still use a 1-wire oxygen sensor.