Hey guys

So I have narrowed my problem down to what I believe is an ABS sensor going bad in my car causing the ABS light and the PSM OFF light to come on...anyone have any ideas on how the heck I can figure out which one is out...or any advice at all really??

 

So after about 6 months I finally took the Turbo to the 2nd dealer to find some resolution on my PSM OFF / ABS problem. So for some history, first off it only happens when I accelerate (past 70mph or so) NOT when I'm braking (ever). So I saw some threads on this site talking about the brake light switch but that wasn't it. The first dealer I took it to said, "It's the ECU, it needs to be re-flashed". They didn't even ask me before they did it, what if it was chip'd??? So needless to say I didn't take it back to them. Anyway, the problem that 2nd dealer (CARLSEN's in Redwood City, CA) found was that it was the Turbo Vacuum Box. They have to order the part from Germany and I'm going to go it installed next week, so stay tuned. This makes total sense becuase the car seem slow sometimes. One day I'd go from 0 to 60 in about 4.5 seconds the next day it was 5.2 seconds. One day I was killing an M3, the next day an IS250 is giving my trouble. I'll let you know what happens and give you more exact details...