Pontiac Repair: 2000 pontiac gtp, mass air flow sensor, mass air flow

Question
i have a 2000 pontiac gtp and my supercharger is not getting full boost. i replaced the plugs and wires. didnt do anything for the car. replaced the coil pack because it got a bad reading on it from a diagnostic car machine. replaced it didnt do anything also. replaced the map sensor and the mass air flow sensor. the mass air flow sensor was cracked all acorss the top. still didnt do anything for the car, im out things that i think it could be so if you could please get back to me it wuold be greatly appreciated.

Answer
Hi Colby:

how do you know your not getting full boost? Don't go by the gage on the DIC. doe it run bad? does it lack power? These are not HI performance engines. if you turn the traction control off and romp on the gas does it make the front tire squeek from a dead stop? If so you more then likely have no issue. Now if it's lacking power and not running right there are other things to look at. That year car had issues with the catalitic converts plugging up. If you have a converter that is restricted it will not breath right meaning if the exhaust can't leave the engine your not going to be able to compress the air into the engine. If this is not setting trouble codes then chances are that there is nothing wrong with it.