1CAMWNDR

iTrader: (21)

Do any of you folks know the part number for the Accufab 4150 TPS? I know it is a GM late model TPS, and I bought one from Advance Auto that looks right and fits right (97 LT1 F-body I think it was), but on HP Tuners it reads 13% when the throttle is closed, and then as I push the accelerator pedal it goes DOWN to 0. Have any of you had problems with the LS1 computer reading the correct throttle position on an Accufab 4 BBL?

1CAMWNDR

iTrader: (21)

I think I found the problem: From pics of the LT1 throttle body the throttle position sensor is on the correct side (passenger side) like the Accufab, but the LT1 opens pulling from the bottom rotating in the oposite direction from the LS1 throttle bodies and the Accufab. So, now I need to find out if anyone knows of the same style throttle position sensor that operates in the oposite direction of the LT1 .

1CAMWNDR

iTrader: (21)

Yep, the LT1 TPS rotates in the wrong direction. Autozone had a Duralast TPS from a 1994 Chevy 1500 5.7 TBI that works correctly. The Autozone stock # is TPS112. $29.99. It reads correctly.

1CAMWNDR

iTrader: (21)

Well, it read % correctly andmade the car run, but not great. Turns out the voltages were not correct. I finally just ordered a TPS from Accufab and it is idling correctly, and going to PE at WOT now!

IH8FORD

iTrader: (6)

My accufab 4150 uses a regular ls1 TPS sensor if I am not mistaken.

Jimmy_d

iTrader: (3)

I know this is an old thread,but im having a prob with my 4150 ,brand unknown, bought a lt1 tps and throws a low voltage code, have a gm tps that was on it and it throws a high voltage code and a ls1 tps wont fit.... Not driving car because i dont want to smoke the trans with bad tps

IllusionalTA

iTrader: (9)

Are you able to check the actual operation of the rod? I believe the lt1 tps spins cw you may need a ccw one off a 5.7 tbi truck...

Jimmy_d

iTrader: (3)

Yeah. the throttle body has no name numbers or markings. I've seen some take a ford late Model and some take a gm.. I've got a tbi one coming. Just gonna have to check the volts and % when it gets here.. bought the car with few mods, gonna have to learn more about it lol

S10xGN

iTrader: (11)

Does it look like this? I got this off E-Bay for a fair price, it's a Force brand.

IllusionalTA

iTrader: (9)

http://item.mobileweb.ebay.com/viewi...d=190836165084

Jimmy_d

iTrader: (3)

It looks exactly like a sullivan 4150 tb.. But im not sure lol.