Still nothing and for some reason oil pressure has dropped

 

oil leak somewhere causing the engine lights and mis-fire? probably a good chance.

might be worth cleaning or checking your mass air flow sensor if you havent yet. easy enough to clean at least. if you have a scanner you can monitor before and after and see if it was in fact dirty.

steve

 

I had those three codes and was dealing with it for months. Do you hear thw misfire during cold starts? I noticed the misfire on cold starts but it wouldn't throw a code. A couple of times it would stall. After a month the light finally came on and i had the random misfire codes. I thought it was intake gaskets my mechanic thought it was the MAF sensor. He would clean it and i would drive it home and it would seem ok. The next morning i would start it and hear the misfire. Which was hardly noticable but was driving me nuts. In the spring when it warmed up i finally had enough and changed the intake gaskets myself. Has run like a well oiled machine since. I know you have new gaskets. I would look up the torque pattern online and go over your intake bolts and re torque them and see if that helps. Hopefully they used the steel fel pro gaskets and not the plastic oem.

 

Nope,no oil leak. My oil pressure use to be at 40 at idle, now it's around the 25-30 mark. I feel the misfire mostly when it heats up or if I tap the throttle, as the revs come back down it begins to rattle and shake like it's going to stall. I cleaned the maf sensor. When I unplug the maf sensor the engine light flashes but I hear no real difference from the engine. The car has a supercharger which acts as my intake. This has all new gaskets on. U spoke with magnuson on the phone and they weren't much help. I asked would it be possible to fit the super charger back on wrong causing an air leak. He said no, they slot right in so that is very unlikely. Im tempted to take it off myself and have a look but I don't want to cause any more problems for myself. Any other ideas?