Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- Medium
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $60 to $800
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P2004 Intake Manifold Runner Control Stuck Open (Bank 1) Medium
The P2004 code means the variable flaps inside the intake manifold cannot close and stay stuck in the open position. The typical symptom is a loss of torque at low rpm, because that is exactly where the flaps should be closed. Carbon buildup is the dominant cause.