Powertrain
generic / SAE
P20F8
Intake Manifold Runner Control Circuit Performance (Bank 1)
The IMRC actuator drive circuit on bank 1 is electrically OK but its current draw or duty-cycle response is outside the calibrated profile — typically a high-resistance solenoid winding or a partially shorted driver.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / F8
Possible causes
- Solenoid winding ageing — resistance climbing high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 50–500 €
- Estimated time: 0.5–2.5 h
- Component: imrc actuator
- Component: imrc harness
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012