P015E
Excessive Time to Enter Closed Loop Fuel Timing Control
ECU took longer than allowed to enter closed-loop control of fuel injection timing. Often slow sensor warm-up.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Sensor heater aging slows warm-upCommon
Parts involved
- Oxygen Sensor
- ECT Sensor
P015E is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.