What does code P2AB3 mean?

Q: What does code P2AB3 mean?

Cold Start Intake Manifold Runner Control Stuck Open Bank 1. P2AB3 indicates that the engine computer has detected a fault in the cold start intake manifold runner control (IMRC) system for bank 1, specifically that the runner control valve is stuck open during cold start conditions. The computer commands the valve to close to improve low-temperature combustion stability, but the monitored position or performance does not match the command, so it sets this code.

DTC codes / P2Axx · Hybrid propulsion / P2AB3

P2AB3Cold Start Intake Manifold Runner Control Stuck Open Bank 1

P2AB3 indicates that the engine computer has detected a fault in the cold start intake manifold runner control (IMRC) system for bank 1, specifically that the runner control valve is stuck open during cold start conditions. The computer commands the valve to close to improve low-temperature combustion stability, but the monitored position or performance does not match the command, so it sets this code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.