OBD-II code · Powertrain (generic, extended)
P2143 EGR Vent Control Circuit/Open
The drive circuit of the EGR vent solenoid is open — the solenoid releases vacuum from the EGR actuator. Open circuit means the EGR cannot reset its position.
Is it safe to drive with P2143?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid winding open
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Vent Solenoid
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.