Engine-Codes - Mitsubishi - P1128 MITSUBISHI

P1128 MITSUBISHI - Closed Loop Fueling Not Achieved Bank 1

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

P1128 MITSUBISHI Possible Causes

  • Check fuel trim values
  • rich or lean air/fuel ratio
  • Open or short circuit condition
  • Manifold Absolute Pressure (MAP) Sensor faulty
  • Engine Coolant Temperature (ECT) sensor faulty
  • Faulty oxygen sensor

How is the P1128 MITSUBISHI 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.

What is the cost to diagnose the P1128 MITSUBISHI code

Labor: 1.0

The cost to diagnose the P1128 MITSUBISHI 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.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1128 MITSUBISHI Meaning

Closed Loop Fueling Not Achieved Bank 1 is the generic description for the P1128 Mitsubishi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1128 Mitsubishi OBDII code.

Still have questions? Please post your question on our Comments Section of the main page for more information.

More Information

Need more information on how to fix the P1128 MITSUBISHI code?
Get Access to Factory Service Manuals

Need more help?

Get the P1128 Mitsubishi code diagnosed by a professional: Find a repair shop in your area