Symptoms of P2012 OBD II Trouble Code
- Hesitation upon acceleration
- Reduction in engine performance, especially at low RPM levels
- Rich or lean exhaust
- Diminished fuel efficiency
- Engine surge
Common Causes of P2012 OBD II Trouble Code
- Loose or binding intake manifold runners bank 2
- Defective IMRC actuator solenoid bank 2
- Bad intake manifold runner position sensor bank 2
- Open or shorted wiring in the IMRC actuator solenoid control circuit
- Carbon buildup on the IMRC flaps or intake manifold ports
- Faulty MAP Sensor
- Corroded IMRC actuator solenoid connector face