P1129 CHRYSLER – Closed Loop Fueling Not Achieved Bank 2

P1129 CHRYSLER Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1129 CHRYSLER Possible Causes

Fuel delivery system,Engine Coolant Temperature (ECT) sensor or wiring connectors,MAP sensor or wiring connectors,O2 sensor wiring or connectors,Engine mechanical system

P1129 CHRYSLER Description

The Powertrain Control Module (PCM) detects a condition where the vehicle has remained in open loop fuel control, from a start-up condition, longer than a calibrated amount of time, when conditions would have otherwise closed loop operation.