P3158
Cylinder 4 High-Pressure Fuel Injector High Side Circuit Low
P3158 is an OBD-II diagnostic trouble code meaning: Cylinder 4 High-Pressure Fuel Injector High Side Circuit Low. Common causes: malfunction of the fuel injector of cylinder 4, open or short circuit in the injector control circuit. Estimated repair cost: $28–167.
Symptoms
- Unstable engine operation
- Misfire in cylinder 4
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Is On
Causes
- Malfunction of the fuel injector of cylinder 4
- Open or short circuit in the injector control circuit
- Damaged connectors or corroded contacts
- Engine control unit (ECU) malfunction
- Problems with the injector relay or fuse
How to Fix
- Check the condition of the cylinder 4 injector
- Inspect the injector control circuit for damage.
- Check connectors and contacts for corrosion or damage
- Check injector relays and fuses
- If necessary, replace the injector or repair the wiring
Related codes
FAQ
What does the P3158 code mean?
P3158 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 High-Pressure Fuel Injector High Side Circuit Low
What causes a P3158 error code?
The most common causes of P3158 include: Malfunction of the fuel injector of cylinder 4; Open or short circuit in the injector control circuit; Damaged connectors or corroded contacts; Engine control unit (ECU) malfunction.
How do I fix a P3158 diagnostic trouble code?
To fix P3158: Check the condition of the cylinder 4 injector. Inspect the injector control circuit for damage.. Check connectors and contacts for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3158?
Limited driving only, diagnose soon
How much does it cost to fix P3158?
The estimated repair cost for P3158 is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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