I have a 2001 saturn ls2 that is shifting hard intermediately. I've been told the throttle position sensor if faulty can cause this. that guy blowing smoke or should I check it out? what are the voltage specs for this model? thx for any help in this.
throttle position sensor on 2000 Saturn LS2
by Visitor in Puyallup, WA on May 06, 2010
ANSWER by psawall , July 19, 2010
I would recommend checking the MAF (mass air flow) sensor. It's between the air filter and the throttle body...really easy to pull out. You can probably pick up a can of MAF sensor cleaner at your local auto parts store, it might do the trick. Otherwise replace it, I believe this is a common problem on the LS2 (I replaced mine)