OBD-II code · Powertrain (generic, extended)
P2AB3 Cold Start Intake Manifold Runner Control Stuck Open Bank 1
During cold start, the intake manifold runner control on bank 1 cannot reach the closed position. Tumble/swirl effect for cold-start mixture preparation is reduced.
Is it safe to drive with P2AB3?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyActuator sluggish at cold temperatures
- PossibleLinkage iced or stiff
- Less likelyCarbon or debris buildup preventing free movement
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Imrc Actuator B1, Intake Manifold Runners
Related codes
- P2AB4Cold Start Intake Manifold Runner Control Stuck Open Bank 2
- P2AB0Particulate Matter Sensor Processor Performance
- P2AB1Catalyst Heater Control Module Performance
- P2AB2Catalyst Heater Control Module Supply Voltage
- P2AB5Cold Start Intake Manifold Runner Control Stuck Closed Bank 1
- P2AB6Cold Start Intake Manifold Runner Control Stuck Closed Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.