Code result
P20F8
Intake Manifold Runner Control Circuit Performance
Moderate severity
What it means
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.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Solenoid winding ageing — resistance climbing
highOne of the most commonly reported causes for this code — check this first.
Related help
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