Code p2004 refers to intake manifold air control actuator bank 1---actuator stuck open===causes --wiring--intake manifold air control actuator --mechanical fault.
also refers to intake manifold air control solenoid bank 1 solenoid stuck open===causes--wiring intake manifold air control solenoid --- mechanical fault
you may be able to remove and clean the units to ensure they move freely otherwise replace them
SOURCE: went to autozone they diagnostic
The intake manifold runner valve system is mounted on the intake manifold and consists of the intake manifold runner valve (IMRV), the IMRV motor and the IMRV position sensor. The IMRV motor opens and closes the IMRV using multiple gears. The valve position sensor detects the opening angle of the IMRV. The IMRV has a groove on its upper portion. When the IMRV is closed, air flows through a groove into the cylinder from the intake manifold, so that a dynamic air flow or "tumble" air flow is generated in the cylinder. The tumble air flow drastically reduces fuel deposits inside the intake air port and the combustion wall surface inside the cylinder. This improves the combustion efficiency by boosting the air−fuel mixture and air flow turbulence.
Check this document for Diagnosis procedures and more information:
http://www.4shared.com/document/OGI6_zov/INTAKE_MANIFOLD_RUNNER_CONTROL.html
I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514
SOURCE: ENGINE LIGHT ON SLIGHT LOSS OF POWER AND POSSIBLE RATTLE
p2004 (Intake Manifold Runner Control Stuck Open)You need to take a look at the IMRC actuators on the intake manifold. You can try using a screwdriver or other tool to move the actuators to see if one is stuck in the open position. Do not use your fingers to do this, because if one is open and decides to close it has a bit of force behind it and can injure you. If the IMRC is stuck open, it is usually due to deposits in the intake manifold. Repair involves removing the upper intake manifold and cleaning out any deposits in the IMRC plate area. I would try running some Techron Concentrate in 2 tanks of gas to see if it dissolves enough of the gunk on the plates to free up the stuck one. Certainly a lot cheaper than having to pull the intake manifold and cleaning the plates. Always run tier one gasoline like Shell or Chevron to reduce the buidup of deposits.
SOURCE: I got a code P2004
what engine? So the guy running the test could'nt point it out to you? You need to find a shop that qualified to repair the car. its a valve on the intake manifold that opens and closes to help th engine produce the most power at low and high rpm. they get stuck. sometimes you can clean them.
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