Conditions Incorrect for Secondary Air Self Test
Table of contents
P142A MERCURY Possible Causes
- Faulty Secondary Air System
How do I fix code P142A MERCURY?
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 connector’s pins.
Cost of diagnosing the P142A MERCURY code
The cost of diagnosing the P142A MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P142A MERCURY Description
The Powertrain Control Module (PCM) monitors the Secondary Air System. The PCM sets the OBDII code when the Secondary Air System is not to factory specifications.