P2004
The engine computer has found that the intake manifold runner control on bank 1 is stuck open or not closing when commanded
Severity: Inspect soonIntake manifold runner control codes
Some engines change the shape of their intake while running. Runner control valves switch between long and short intake paths, and swirl or tumble flaps partly close each port at low speed to mix the air and fuel better, then open for full power. A vacuum or electric actuator moves them, and on many engines a position sensor tells the computer where they are.
How these codes differ
- Stuck codes (for example P2004 stuck open and P2006 stuck closed, bank 1) mean the actuator was commanded but the position sensor says the flaps did not follow. Carbon buildup that makes the flaps stiff, worn shaft bearings or a worn or bent link rod are common causes, and these can need a new manifold rather than a new actuator.
- Control circuit codes (for example P2008, bank 1, and P0660 for the intake manifold tuning valve) are electrical: they point to the actuator or valve coil, its connector and wiring.
- Position sensor codes (for example P2015, bank 1) concern the sensor that reports flap position. A sensor that reads wrong can make good flaps look stuck.
- After an actuator is replaced, the computer usually has to learn its end positions; skipping that step can leave the same code in place even though the new part is fine.
Intake manifold runner control codes
P200A
The engine computer has found that the intake manifold runner or variable intake valve on bank 1 isn't moving or performing as commanded
Severity: Inspect soonP2015
The sensor that reports the position of the intake manifold runner flaps on bank 1 is giving a reading that doesn't match where the flaps should be
Severity: MonitorP2005
Intake runner flaps stuck open on bank 1
Severity: Severity not verifiedP1004
Short runner valve control or performance fault (Chrysler and Dodge)
Severity: Severity not verifiedP2017
Intake manifold runner position sensor signal too high (bank 1)
Severity: Inspect soonP2006
Intake runner control stuck closed (bank 1)
Severity: Severity not verifiedP2007
Intake runner control stuck closed (bank 2)
Severity: Severity not verifiedP2016
Intake manifold runner position sensor or switch signal too low (bank 1)
Severity: Severity not verifiedP2076
The position sensor on the intake manifold air control (tuning) valve is giving a reading outside the expected range
Severity: Severity not verified
Sources and review
- Final Regulation Order: 13 CCR §1968.2, Malfunction and Diagnostic System Requirements (OBD II), 2004 and subsequent model-year passenger cars, light-duty trucks and medium-duty vehicles (2015 amendments)
- How intake manifolds are designed and work
- Intake manifold servo motor: problems after installation
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error