I checked the cap, the wires, and the plugs are all in good condition. Using a code reader, I was able to determine that the MAS controller to pull the following codes:

Code 3 - TN/TD signal (RPM) interrupted
Code 5 - Output for air injection pump control defective
Code 13 - Excessive A/C compressor clutch slippage

Code 3 - i am not sure what this code refers to and it is probably attributed to the hesitation that I am currently experiencing when the car is at operating temp.

Code 5 - bad air/vacuum pump? Can anyone confirm for sure before i purchase a new one?

Code 13 - well, probably a bad compressor? I have no AC for a long time.

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200 75 W115 (Mom's)
190e 90 2.6 W201
E320 95 Wagon W124
72 BMW 3.0 CSI