TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Poor shifting after TPS calibration?

Thread Tools
 
Search this Thread
 
Old Oct 2, 2006 | 01:28 PM
  #1  
torqueaddict's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 179
Likes: 0
From: Warrington, PA
Car: 89 GTA
Engine: 5.7 ZZ4 Vortec TPI
Transmission: 7004R
Poor shifting after TPS calibration?

I just adjusted the TPS on my 89 350 GTA, and while it felt a little more snappy off the line, it doesn't downshift to first and chirp the tires anymore. Also the shifts seem to occur at low rpm part throttle, and slow and sloppy now.

I readjusted it back to before (around .45 v at idle rather than .54) but that didn't seem to do anything. Does this sound like I must have bumped the TV cable out of adjustment, or something else?
Reply
Old Oct 3, 2006 | 12:34 PM
  #2  
IROC-You's Avatar
Member
 
Joined: Sep 2006
Posts: 184
Likes: 0
From: JSS Soto, Tallil IRAQ
Car: 87 IROC-Z28
Engine: 414ci Twin Turbo
Transmission: T56
Axle/Gears: Ford 9"
I think the TPS only has effect over the TC Lockup, unless you have a 4L60E.

I think its the TV cable got mis-adjusted.
Reply
Old Oct 4, 2006 | 02:16 PM
  #3  
D's89IROCZ's Avatar
Supreme Member
 
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Originally Posted by IROC-You
I think its the TV cable got mis-adjusted.

I think so too.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
db057
TBI
3
Jan 10, 2020 08:55 PM
92firebirdguy
TBI
59
Sep 1, 2016 07:53 AM
armac
Interior Parts for Sale
2
Sep 29, 2015 07:06 PM
AmpleUnicorn88
Interior
12
Sep 24, 2015 09:15 AM




All times are GMT -5. The time now is 04:05 PM.