What does code P28FA mean?

Q: What does code P28FA mean?

Exhaust Pressure Too Low Bank 2. P28FA indicates that the powertrain control module has detected an exhaust pressure reading on bank 2 that is lower than the expected value for the current operating conditions. The computer compares the bank 2 exhaust pressure sensor signal against a modeled threshold and sets this code when the measured pressure stays below that threshold for a calibrated time.

DTC codes / P28xx · Transmission / P28FA

P28FAExhaust Pressure Too Low Bank 2

P28FA indicates that the powertrain control module has detected an exhaust pressure reading on bank 2 that is lower than the expected value for the current operating conditions. The computer compares the bank 2 exhaust pressure sensor signal against a modeled threshold and sets this code when the measured pressure stays below that threshold for a calibrated time.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.