P2A00 - O2 Sensor Circuit Range/Performance (Bank 1 Sensor 1)
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P2A00 - O2 SENSOR CIRCUIT RANGE/PERFORMANCE (BANK 1 SENSOR 1)
| Description: The nitrogen oxide (NOx) module estimates the expected exhaust oxygen (O2) content during certain fuel, boost and exhaust gas recirculation (EGR) conditions. This DTC sets when the actual NOx sensor O2 signal value is not within the expected range for a calibrated amount of time. | |||
Possible Causes:
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| Diagnostic Aids: The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RD . | ||