P1538
Intake Manifold Runner Control Stuck Open Bank 2
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)
Symptoms
- Reduced power at low speeds
- Uneven engine operation
- Check engine light comes on
- Deterioration in acceleration dynamics
- Possible popping sounds in the intake manifold
Causes
- Mechanical jamming of the IMRC damper
- Control solenoid valve malfunction
- Open or short circuit in control circuit
- Problems with the vacuum drive (if any)
- Engine control module malfunction
How to Fix
- Check the mechanical condition of the IMRC dampers
- Check the operation of the solenoid valve
- Check the integrity of wiring and connectors
- Check vacuum lines (if applicable)
- If necessary, replace the intake manifold assembly