P1127 MERCURY - Exhaust Not Warm Enough Downstream O2 Sensor Not Tested
P1127 MERCURY Possible Causes
- Faulty O2 Sensor Heaters
- O2 Sensor Heaters harness is open or shorted
- O2 Sensor Heaters circuit poor electrical connection
First diagnose P1127 MERCURY code
Check 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 terminals.
Cost of diagnosing the P1127 MERCURY code
Labor: 1.0The cost of diagnosing the P1127 MERCURY 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.
P1127 MERCURY Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1127 MERCURY MeaningThe 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.
P1127 MERCURY More InformationNeed more information on how to fix the P1127 MERCURY code?
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