LS2 and LS3 Throttle Body
Thread Starter
Burning Brakes
Joined: Apr 2004
Posts: 866
Likes: 1
From: Bakersfield, Blown 402 Z06 Ca
LS2 and LS3 Throttle Body
My question is I have a 2002 Z06 with a 402 stroker. I put LS3 heads and a LS3 intake manifold with a cam and it goes into reduced engine power and service traction control. My question is what is the difference in the LS2 throttle body and a LS3 throttle body if any at all? I'm thinking the problem could be the TPS on my throttle body or the gas pedal sensor to the TPS? Thanks for any help.
Racer
Joined: Jun 2013
Posts: 256
Likes: 3
From: West Texas
I seem to remember reading that the gold blade LS3 throttle body opens the opposite direction from the LS1/2 throttle bodies, thus throwing a code and putting the engine in reduced power mode.
I think you have to use a silver bladed LS2 throttle body if I remember right.
I think you have to use a silver bladed LS2 throttle body if I remember right.
Drifting
Joined: Sep 2009
Posts: 1,719
Likes: 4
From: cinnaminson n.j.
St. Jude Donor '14
I had originally used an ls7 tb and had a problem as well. Swapped it with an ls2 tb, good to go. I was told by my tuner the tac module wouldn't work with ls3 and ls7 tb's.
