Rear Sensor Simulator

Rear O2 Sensor Simulators are used in off road/racing vehicles to prevent the check engine light from illuminating and to prevent an ECU code from tripping (P-0420 and/or P-0430) when the catalytic converter(s) are removed for off road/racing use.

URD Rear O2 Sensor Simulators are carefully calibrated to condition the signal from the rear O2 sensor to keep it in the range the ECU is expecting to see.

DO NOT USE ON A PUBLIC ROAD OR HIGHWAY ANYWHERE IN THE UNITED STATES.

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