For the last couple weeks every now and then my 2002 MCS trips a P0105 fault. When it does it runs a little weird and the idle goes up and down. When I shut it off and restart it's fine for awhile, sometimes a day or two. Has anybody had this before??

 

I used to get this code alot... do you have a pulley on the car? I think it's a high manifold pressure fault. I don't remember though.

 

PS... if the problem persits just try changing out the sensor. It is the little dingleberry on the front of the manifold... two tiny little hex screws or something like that. A $10 sensor and a 5 minute fix.