rocket800

I just finished installing a Paxton 2200sl kit from BrenSpeed on my 05 Mustang GT. Everything went together well, loaded the tune and checked for leaks, etc... I drove the car for 15 minutes or so (not really beating on it yet), it was running great and then the idle started fluctuating real bad, it was stalling and then threw codes P2196 02 sensor signal, stuck rich bank 1 and P2198 02 sensor signal stuck rich bank 2. It will run if you are on the gas, however, the minute you shift into neutral it dies, spits and sputters.

I know a lot of guys on this forum have the 2200 kit on their cars, has anyone had a similar problem? Thanks!

moosestang

You have a vacuum leak somewhere or an air leak downstream of the MAF sensor. Either that or it's the tune.

rocket800

It was an air leak. Thanks!