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2011 Kia Sorento Questions & Answers
Check engine light code p200a
P200A Intake Manifold Runner Performance
The Variable Charge Motion Actuator (VCMA) is used to adjust a valve (flap) in the intake runner for each cylinder. The valve does not close off the runner but restricts it in such a way to cause turbulence (swirl) in the air fuel mixture. The turbulence in the air will reduce emissions under cold start condition. The valve is operated by a worm gear type driver which doesn't open for limp home mode in the case of loss of current supply. (It doesn't have a return spring.) The system also has a Valve Position Sensor (VPS) to supply a feedback of the valve position to the PCM.
Kia Sorento V-6 start-up difficulty
You probably should perform a fuel pressure test to see if the fuel pressure is bleeding off of the fuel rails when the engine is shut off. If it is, you could have a bad fuel pressure regulator or a bad check valve in the fuel pump module (which will require replacement of the module).One way to test for this condition without any tools is like this:cycle the key ON, wait about two seconds, then OFF, wait about 2 more seconds, and back ON again. Repeat his 3 or 4 times before turning the key to the CRANK position. If the engine starts immediately every time you do this, then the hard starting is definately caused by the fuel pressure bleeding off.
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