Review on ACDelco AFS74 Original Equipment Heated by Keith Aluguvelli
Works much better than non-heated units and gives much better results.
Used as a replacement for the single wire O2 sensor that came with my '89 Camaro IROCZ. Works much better than non-heated units and gives much better ECM readings. Helped eliminate the annoying idle spike issue that could occur when the vehicle temperature reached the set temperature and entered the closed circuit. Connect it to a switched 12V source such as the fuel pump relay so the heater will only turn on when the engine is running.
- Satisfied so far
- Compatibility
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