Subaru 1987 Fuel injected models DTC 42 – Idle switch or circuit
DTC 42 meaning on Subaru 1987 Fuel injected models
DTC 42 on Subaru 1987 Fuel injected models refers to an issue with the idle switch or circuit. This diagnostic trouble code indicates a problem with the idle control system of the vehicle.
Subaru 1987 Fuel injected models DTC 42 symptoms
The symptoms of DTC 42 on Subaru 1987 Fuel injected models may include:
- Fluctuating idle speed
- Engine stalling at idle
- Poor idle quality
Subaru 1987 Fuel injected models DTC 42 causes
The common causes of DTC 42 on Subaru 1987 Fuel injected models are:
- Faulty idle switch
- Wiring issues in the idle circuit
- Poor connection at the idle switch
Subaru 1987 Fuel injected models DTC 42 seriousness
DTC 42 on Subaru 1987 Fuel injected models should be addressed promptly as it can lead to drivability issues and potential engine stalling. Ignoring this code may result in poor engine performance and increased fuel consumption.
How to diagnose DTC 42 on Subaru 1987 Fuel injected models
To diagnose DTC 42 on Subaru 1987 Fuel injected models, follow these steps:
- Use a scan tool to retrieve the trouble codes
- Inspect the idle switch and circuit for any visible damage
- Check the wiring connections for proper continuity
How to fix DTC 42 on Subaru 1987 Fuel injected models
To fix DTC 42 on Subaru 1987 Fuel injected models, you can:
- Replace the faulty idle switch
- Repair any damaged wiring in the idle circuit
- Ensure proper connection at the idle switch
How to erase DTC 42 on Subaru 1987 Fuel injected models
To erase DTC 42 on Subaru 1987 Fuel injected models, you can clear the trouble codes using a scan tool. Once the issue has been fixed, clearing the codes will reset the system and turn off the check engine light.
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