P164A - O2 Sensor Positive Current Trim Circuit 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.
P164A - O2 SENSOR POSITIVE CURRENT TRIM CIRCUIT PERFORMANCE (BANK 1 SENSOR 1)
| Description: The nitrogen oxide (NOx) module monitors the NOx sensor O2 signal during an extended deceleration fuel shut off (DFSO) condition. This DTC sets when the actual O2 signal value does not match the expected O2 signal value. | |||
Possible Causes:
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RD . | ||