CEL code P2004 - fixed the valve, CEL came back on - same code P2004!! Help.
What is your question?
For the life of me my technician can't determine what is going on here. We've replaced the valves in question, put on new intake manifolds, cleaned and reinstalled the intake, but the CEL with P2004 still comes on. Before I go down the road of replacing the entire intake manifold on the car, I'd like to know what is happening here.
Is there a way to trouble shoot further to see what is actually causing the intake runner control valve to get "stuck open" (as the P2004 code suggests)?
Please help. The Dealership is ZERO help.
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