P2A00

DTC P2A00: A/F Sensor (Sensor 1) Range/Performance Problem

NOTE: Information marked with a double asterisk (**) applies to 2004-2005 models.

1. Reset the ECM with the HDS.
2. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
3. 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 DTC P2A00 (P1164)* comes on.
4. Check for a Temporary DTCs or DTCs with the HDS.

Is DTC (P2A00)** 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 C102 (located under the right side of the dash), the A/F sensor relay, the A/F sensor (Sensor 1) and the ECM.