P2004 Intake manifold runner control (IMRC) Stuck open Bank1
P2008 Intake manifold runner control (IMRC) circuit open Bank 1
Both these code are for the intake manifold runner control, (IMRC) one of the code there circuit is open or disconnected, or the vacuum lines to the IMRC is leaking vacuum.
The IMRC should be tested first with a vacuum pump for operational at some time it is the IMRC solenoid that fails.
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