What does code P1135 mean?

Q: What does code P1135 mean?

HO2S Lean Average Bank 1 Sensor 1. P1135 on a Chrysler vehicle means the powertrain control module has calculated that the upstream oxygen sensor on bank 1 (the sensor ahead of the catalytic converter) is reporting a lean average condition over its monitoring period. The computer sees the exhaust stream staying too high in oxygen for too long, and it has stored this code because the long-term fuel trim and sensor response have drifted beyond the calibrated lean limit.

DTC codes / Chrysler codes / P1135

P1135 · ChryslerHO2S Lean Average Bank 1 Sensor 1

P1135 on a Chrysler vehicle means the powertrain control module has calculated that the upstream oxygen sensor on bank 1 (the sensor ahead of the catalytic converter) is reporting a lean average condition over its monitoring period. The computer sees the exhaust stream staying too high in oxygen for too long, and it has stored this code because the long-term fuel trim and sensor response have drifted beyond the calibrated lean limit.

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.