P2386EGR Sensor E Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2386 says the signal of EGR sensor E sits at or above the upper end of its electrical range. With a typical three-wire 5 V pressure or position sensor that happens when the ground is open or the signal line touches a supply voltage; on a temperature sensor wired as a pull-up, an open circuit shows the same picture. No manufacturer documents P2386 publicly. The pattern GM publishes for sensor D on its 2025 diesels gives a sense of scale: P2381 sets once the raw value exceeds 99.83 % of range in 480 of 600 samples, as a Type A fault. CARB asks for out-of-range checks on EGR monitor inputs. P2387 is the low-side counterpart. Expect the MIL and reduced or disabled EGR; the engine itself normally runs on.
- What you may notice
- MIL on
- EGR shut off or reduced
- Scan data shows sensor E at full scale
- Likely causes
- LikelyOpen sensor ground wire or ground terminal
- PossibleSignal wire shorted to 5 V reference or battery voltage
- PossibleSensor output stuck high internally
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.