Fuel and air

P200A — Intake Manifold Runner Performance, Bank 1

Severity: medium Drive with care, to a shop

What P200A means

The engine control module moves intake manifold runners with an actuator and monitors their position with a sensor. P200A sets when the actual bank 1 runner position differs noticeably from the commanded one. These runners change the intake path to balance low-rpm torque and high-rpm power.

Symptoms

  • Rough idle
  • Reduced power
  • Check Engine light on
  • Hesitation when accelerating
  • Worse fuel economy

Possible causes

  1. Worn or failed runner actuator
  2. Faulty position sensor
  3. Carbon buildup restricting runner movement
  4. Damaged or corroded wiring or connectors
  5. Faulty control solenoid or vacuum supply to the actuator
  6. Rarely, a faulty ECM

How to diagnose

  1. Scan for all codes and review freeze frame data
  2. Inspect the actuator wiring and connector for damage, moisture and corrosion
  3. Check vacuum hoses and the control solenoid if the system is vacuum-operated
  4. Command the actuator with a scan tool and compare commanded and actual position
  5. Remove the intake and check whether the runners move freely or are jammed by carbon
  6. Test power, ground and sensor signal with a multimeter
  7. Check linkage and levers for play or breakage
  8. Clear the code and road test after repair

Common fixes

  • Clean carbon from the manifold and runners
  • Replace the actuator or position sensor
  • Replace the solenoid or vacuum hoses
  • Repair wiring and connectors
  • Replace the intake manifold if the runner assembly is not serviceable
  • Reflash or replace the ECM only after ruling out everything else

Questions and answers

What does P200A mean?

The ECM found that the bank 1 intake manifold runners are not where it commanded them to be. The cause can be the actuator, sensor, carbon buildup or wiring.

Can I drive with P200A?

Briefly, yes, but expect reduced power. Repair it soon, since a stuck or broken runner can lead to engine damage.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.