P0134

DTC P0134: A/F Sensor (Sensor 1) No Activity Detected

1. Check the attachment state of the A/F sensor (Sensor 1).

Is it slacked from the exhaust pipe?

YES - Reinstall the A/F sensor (Sensor 1).

NO - Go to step 2.

2. Reset the ECM.
3. Start the engine. Hold the engine speed at 3,000 rpm with no load (in neutral) until the radiator fan comes on, then let it idle for 2 minute.

Is DTC P0134 indicated?

YES - Replace the A/F sensor (Sensor 1).

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM.