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P1129 Chrysler

P1129 Chrysler - Closed Loop Fueling Not Achieved Bank 2

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
What does this mean? What does this mean?
- Engine Light ON (or Service Engine Soon Warning Light)
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.

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