P1390
Manufacturer-specific fault code
This code has different meanings depending on the manufacturer. Select your vehicle make below to view specific diagnosis and solutions:
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
1 — Type
Manufacturer-specific
3 — Subsystem
Ignition system or misfire
Manufacturer-specific meanings
- Circuito di regolazione ottani carburante
- Timing Belt Skipped One Tooth Or More
- Wheel Speed Sensor 1, G-Sensor Circuit
- Wheel Speed Sensor 1 G-Sensor Circuit
- Octane Adjust Out of Self-Test Range
- Octane Adjust Shorting Bar Out Or Circuit Open