P1164

DTC P1164: A/F Sensor (Sensor 1) Range/Performance Problem

1. Reset the ECM.
2. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Check for a Temporary DTC with the scan tool.
4. Test-drive in D position (M/T in 5th gear). Starting at 1,600 rpm, accelerate using wide open throttle for at least 5 seconds. Then decelerate for at least 5 seconds with the throttle completely closed until the readiness code or Temporary DTC P1164 comes on.

Is Temporary DTC P1164 indicated?

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

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at C102 (located under the right side of the dash), the A/F Sensor relay, the A/F Sensor (Sensor 1) and the ECM.