o2 CEL Fix Adapters / Spacers Lambda Lambda/Oxygen Sensor

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What is a CEL? CEL means, Check Engine Light. When installing aftermarket Downpipes or Cat Delete pipes, it tends to trigger a Check Engine Light. We offer CEL Fix Adapters to try and correct this issue by spacing out the secondary o2 sensor. Tricking the ECU into thinking there is still a catalytic converter in place. Therefore they will not trigger the check engine light. This adapter uses a Male M18x1.5 end to thread into your standard O2 Bung port and then has a Female m18x1.5 end to thread in most common O2 Sensors. Please note, this might not work on all vehicles, due to how their ECU's are. For off road vehicle use only. Show more