Engine-Codes - Ford - P1127 2007 FORD FUSION

P1127 2007 FORD FUSION - Exhaust Not Warm Enough Downstream O2 Sensor Not Tested

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

P1127 2007 FORD FUSION Possible Causes

  • Faulty O2 Sensor Heaters
  • O2 Sensor Heaters harness is open or shorted
  • O2 Sensor Heaters circuit poor electrical connection
  • Exhaust system too cool

How is the P1127 2007 FORD FUSION 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

Downstream refers to Sensor 2 (see picture).

What is the cost to diagnose the P1127 2007 FORD FUSION code

Labor: 1.0

The cost to diagnose the P1127 2007 FORD FUSION 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)

P1127 2007 FORD FUSION Meaning

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.

More Information

Need more information on how to fix the P1127 2007 FORD FUSION code?
Get Access to Factory Service Manuals

Need more help?

Get the P1127 2007 Ford Fusion code diagnosed by a professional: Find a repair shop in your area