My p5 did what your saying yours does I never could figure it out and just dealt with it then one morning my timing belt broke, as I was replacing it I found that the tensioner was bad so I replaced that as well after I got the car back together it ran better than ever no more random stalls or...
I recently did an fs-ze swap in my p5 I had to use the original intake and exhaust manifolds and crank pulley from my old worn out fs-de just to get everything plugged up and so it would run with the usdm ecu without any check engine lights. Is it possible to have the stock ecu tuned to get the...