What Does P200B Mean?
DTC P200B indicates that the intake manifold runner system on bank 2 is not performing within expected parameters. This is the bank 2 counterpart to P200A. The ECM has determined that the runner flaps on bank 2 are not reaching their commanded position within the expected time or travel range, suggesting a mechanical restriction or actuator issue specific to the bank 2 intake manifold.
Common Causes
35%
Carbon buildup causing stuck or binding runner flaps on bank 2
25%
Worn or broken IMRC actuator linkage on bank 2
20%
Failing IMRC vacuum actuator on bank 2 (vacuum systems)
12%
Vacuum supply leak to the bank 2 IMRC actuator
8%
Faulty IMRC position sensor on bank 2
Diagnostic Steps
1
Visually inspect the bank 2 intake manifold runner flaps for carbon deposits, debris, or physical obstruction.
2
Manually move the bank 2 runner flaps with the engine off to verify free movement throughout full travel.
3
Command the IMRC actuator on bank 2 open and closed via scan tool while monitoring position sensor PID for proper response.
4
For vacuum-actuated systems, check vacuum supply hose integrity and actuator diaphragm on bank 2.
5
Compare bank 2 runner performance data with bank 1 to isolate the fault to the affected bank.
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
DTC P200B indicates that the intake manifold runner system on bank 2 is not performing within expected parameters. This is the bank 2 counterpart to P200A. The ECM has determined that the runner flaps on bank 2 are not reaching their commanded position within the expected time or travel range, sugge...
The most common cause of P200B (Intake Manifold Runner Performance Bank 2) is: Carbon buildup causing stuck or binding runner flaps on bank 2
Typical repair costs for P200B range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Minimal safety concern. May cause reduced torque at certain RPM ranges and slightly rougher running. The vehicle remains safe to drive.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P200B to identify the root cause.
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Quick Info
Category
Powertrain
System
Intake / Fuel Management
Difficulty
Type
Generic (SAE)
Recommended Tools
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