What does code P1158 mean?

Q: What does code P1158 mean?

HO2S Bank 2 Sensor 2 Rich Or High Voltage. P1158 on a Chrysler vehicle means the powertrain control module has detected that the downstream heated oxygen sensor on bank 2 is reporting a rich exhaust condition or a voltage that stays higher than expected. The computer compares this signal against its expected range and flags the code when the sensor output indicates excess fuel or an abnormally high voltage for too long.

DTC codes / Chrysler codes / P1158

P1158 · ChryslerHO2S Bank 2 Sensor 2 Rich Or High Voltage

P1158 on a Chrysler vehicle means the powertrain control module has detected that the downstream heated oxygen sensor on bank 2 is reporting a rich exhaust condition or a voltage that stays higher than expected. The computer compares this signal against its expected range and flags the code when the sensor output indicates excess fuel or an abnormally high voltage for too long.

SystemPowertrain

Code typeChrysler specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

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