P3101
Cylinder 1 High-Pressure Fuel Injector Low Side Circuit Low
P3101 is an OBD-II diagnostic trouble code meaning: Cylinder 1 High-Pressure Fuel Injector Low Side Circuit Low. Common causes: cylinder 1 injector malfunction, open or short circuit in the injector control circuit. Estimated repair cost: $33–167.
Symptoms
- Misfire in cylinder 1
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Check Engine Light Illuminates
Causes
- Cylinder 1 injector malfunction
- Open or short circuit in the injector control circuit
- Poor contact in the injector connectors
- Engine control unit (ECU) malfunction
- Wiring harness damage
How to Fix
- Check the resistance of the injector of cylinder 1
- Inspect the injector control circuit for damage.
- Check the contacts in the injector and ECU connectors
- If necessary, replace the injector
- Check and replace wiring harness if necessary
Related codes
FAQ
What does the P3101 code mean?
P3101 is an OBD-II diagnostic trouble code that indicates: Cylinder 1 High-Pressure Fuel Injector Low Side Circuit Low
What causes a P3101 error code?
The most common causes of P3101 include: Cylinder 1 injector malfunction; Open or short circuit in the injector control circuit; Poor contact in the injector connectors; Engine control unit (ECU) malfunction.
How do I fix a P3101 diagnostic trouble code?
To fix P3101: Check the resistance of the injector of cylinder 1. Inspect the injector control circuit for damage.. Check the contacts in the injector and ECU connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3101?
Limited driving only, diagnose soon
How much does it cost to fix P3101?
The estimated repair cost for P3101 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat