Engine-Codes - Chrysler - P1128 CHRYSLER

P1128 CHRYSLER - Closed Loop Fueling Not Achieved Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1128 CHRYSLER Possible Causes

  • Low battery charge
  • Faulty Totally Integrated Power Module
  • Fuel delivery system
  • Manifold Absolute Pressure (MAP) sensor or wiring connectors
  • O2 sensor wiring or connectors
  • Engine mechanical system
  • Faulty Powertrain Control Module (PCM)

How is the P1128 CHRYSLER code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Start by checking the battery charge and terminals, and alternator charging. If the battery and alternator are OK, the Totally Integrated Power Module may be damage.

What is the cost to diagnose the P1128 CHRYSLER code

Labor: 1.0

The cost to diagnose the P1128 CHRYSLER code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine Hesitation
  • Engine Stalling
  • Engine Misfiring

P1128 CHRYSLER Meaning

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.

More Information

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