Engine-Codes - Lincoln - P1127 LINCOLN

P1127 LINCOLN Code - Exhaust Not Warm Enough Downstream O2 Sensor Not Tested

- Code Popularity: 2,615 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P1127 LINCOLN Code?

  • Faulty O2 Sensor Heaters
  • O2 Sensor Heaters harness is open or shorted
  • O2 Sensor Heaters circuit poor electrical connection

|How to Fix the P1127 LINCOLN Code?

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 P1127 LINCOLN code?

Labor: 1.0

The cost to diagnose the P1127 LINCOLN code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1127 LINCOLN code possible symptoms?

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

|What Does the P1127 LINCOLN Code Mean?

The heated oxygen sensor (HO2S) monitor uses an exhaust temperature model to determine when the HO2S heaters are cycled ON. The test fails when the inferred exhaust temperature is below a minimum calibrated value.

Exhaust Not Warm Enough Downstream O2 Sensor Not Tested

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