What does code P1125 mean?

Q: What does code P1125 mean?

Long Term Fuel Trim Add Air Bank 2 System Too Rich. P1125 on Volkswagen vehicles indicates that the engine control module has detected an excessively rich condition on bank 2, based on long-term fuel trim adjustments. The computer has reached the limit of its ability to lean out the mixture, meaning too much fuel or not enough air is reaching that bank of cylinders.

DTC codes / Volkswagen codes / P1125

P1125 · VolkswagenLong Term Fuel Trim Add Air Bank 2 System Too Rich

P1125 on Volkswagen vehicles indicates that the engine control module has detected an excessively rich condition on bank 2, based on long-term fuel trim adjustments. The computer has reached the limit of its ability to lean out the mixture, meaning too much fuel or not enough air is reaching that bank of cylinders.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyProfessional

AreaFuel and air metering

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