P16A8
Glow Plug Control Module Temperature - Intake Air Heater Temperature Not Plausible
P16A8 is an OBD-II diagnostic trouble code meaning: Glow Plug Control Module Temperature - Intake Air Heater Temperature Not Plausible. Common causes: faulty glow plug temperature sensor, problems with the intake air heater temperature sensor. Estimated repair cost: $17–89.
Symptoms
- Difficulty starting the engine in cold weather
- Check Engine Light Is On
- Reduced engine power
- Unstable operation at idle
- Increased fuel consumption
Causes
- Faulty glow plug temperature sensor
- Problems with the intake air heater temperature sensor
- Open or short circuit in the sensor circuit
- Malfunction of the glow plug control module
- Poor contact in connectors
How to Fix
- Check the condition of the wiring and connectors
- Test temperature sensors with a multimeter
- Check the resistance of the glow plugs
- Read system operating parameters using a scanner
- If necessary, replace faulty components
Related codes
FAQ
What does the P16A8 code mean?
P16A8 is an OBD-II diagnostic trouble code that indicates: Glow Plug Control Module Temperature - Intake Air Heater Temperature Not Plausible
What causes a P16A8 error code?
The most common causes of P16A8 include: Faulty glow plug temperature sensor; Problems with the intake air heater temperature sensor; Open or short circuit in the sensor circuit; Malfunction of the glow plug control module.
How do I fix a P16A8 diagnostic trouble code?
To fix P16A8: Check the condition of the wiring and connectors. Test temperature sensors with a multimeter. Check the resistance of the glow plugs. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16A8?
Yes, but get it checked soon
How much does it cost to fix P16A8?
The estimated repair cost for P16A8 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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