Review on 🚀 Enhance Performance and Fuel Efficiency with Kwiksen Air Fuel Ratio 234-9023 Oxygen Sensor Upstream Left Sensor 1 Bank 1 Replacement by Paul Dahl

Rav4 2003 first review. Excellent quality. Easy installation. OEM in appearance. So far no problems. The Check Engine light went off and did not go off after the reset time interval. One minor gripe - silver anti-seez, not Cooper. the positive comment already applies. Great hit for the price. To update. 12.07:. upset. Check if the engine light comes on again after a week. 2 codes dropped. P0171 and P1133. Replaced OEM Denzo AF sensor. The Check Engine light went out after several drive cycles. Must reevaluate.