1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Need Urgent Help With TPS Connector Wiring!!!!

Thread Tools
 
Search this Thread
 
Old Dec 9, 2005 | 09:01 PM
  #1  
ssei1995's Avatar
Thread Starter
!! UNCONFIRMED EMAIL !!
Posts like a Northstar
 
Joined: Nov 2004
Posts: 584
Likes: 0
ssei1995 is on a distinguished road
Default Need Urgent Help With TPS Connector Wiring!!!!

Need help with TPS connector wiring. The car is a Series 1, 1995 SSEi. A friend was helping me when I was troubleshooting the car. The TPS connector needed to be replaced and he spliced the new one to the harness and threw away the old connector. I am getting a P0123 code and the car will not go to overdrive. Also, when I check the voltage to adjust the TPS range, all the readings on the voltmeter are in the minus (-) range. Right now the TPS reads -0.57 volts on idle and -4.47 volts with the throttle wide open.

I need to know the wire colors for positions A, B and C for the OEM connector and harness. The replacement connector has different colors. A picture would also be useful too.

Thanks!!!
Reply
Old Dec 9, 2005 | 10:19 PM
  #2  
randman1's Avatar
Senior Member
True Car Nut
 
Joined: Feb 2004
Posts: 2,708
Likes: 2
From: Western MA
randman1 is on a distinguished road
Default

1995 VIN 1,L TPS wiring:
Cavity....color...function...CKT #
A...BLK...sensor ground...808
B...DK BLU...TPS sensor signal (to PCM)...417
C...GRY...+5v reference...416

The book is showing cavities A & C reversed for VIN K. Not too sure what the heck that is.
Reply
Old Dec 10, 2005 | 03:33 AM
  #3  
ssei1995's Avatar
Thread Starter
!! UNCONFIRMED EMAIL !!
Posts like a Northstar
 
Joined: Nov 2004
Posts: 584
Likes: 0
ssei1995 is on a distinguished road
Default

Thank you for the assistance, however, I would like for someone that owns a 1995 SSEi to take a look at their connector, wire colors and location and let me know. I have the Blue and Black color, however the third wire is not gray on the original harness.
Reply
Old Dec 11, 2005 | 07:15 PM
  #4  
ssei1995's Avatar
Thread Starter
!! UNCONFIRMED EMAIL !!
Posts like a Northstar
 
Joined: Nov 2004
Posts: 584
Likes: 0
ssei1995 is on a distinguished road
Default UPDATE!!!!! On TPS Wiring Problem!!!!

After finding the old OEM TPS connector, I found the problem with the P0123 code on my 1995 SSEi.

The wire colors do not match the OEM Wiring Diagram in function and/or color. Cavity "A" is Gray, "B" is Dark Blue and "C" is Black just like a VIN K engine and not a VIN 1. So, I swapped the "A" and "C" wires and the P0123 code dissapeared and now the car runs fine. The replacement conector has the correct wires cavity location and colors in accordance to the wire diagram

However, now when I check the TPS voltage, I show 4.47 vdc for idle and 0.45 vdc for WOT!!! ...and...the voltage still shows as a minus (-) voltage even with a $1,500 Fluke voltage meter!!!

Can anyone explain what the heck is going on????
Reply
Old Dec 11, 2005 | 11:36 PM
  #5  
ron350's Avatar
Senior Member
Posts like a Turbo
 
Joined: May 2003
Posts: 435
Likes: 1
From: B'ham.AL
ron350 is on a distinguished road
Default

Warning this test should set a check engine light.

Clip the voltmeter ground lead to a good ground point on the motor like the alternator.
Now probe more than one 12 volt source to verify your meter is working properly and that you have +12 voltage.

Then unplug the TPS plug turn ignition to run and probe all three pins and see what voltage you have.
Reply
Old Dec 11, 2005 | 11:40 PM
  #6  
Mortehl's Avatar
Senior Member
Certified GM nut
 
Joined: Sep 2005
Posts: 2,009
Likes: 0
From: Home Sweet Home in New York
Mortehl is on a distinguished road
Default

I have a 95 SSEi. I'll check it after work tomorrow and post a pic if I can remember the camera.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
leavanni
Chevrolet
1
Apr 29, 2015 10:22 AM
Bonneville92V688
1992-1999
4
May 16, 2006 01:53 PM
Cookseytonyc
1992-1999
6
Jan 8, 2006 10:40 AM
2x4
1992-1999
7
Dec 7, 2005 04:18 PM
J Wikoff
1992-1999
2
May 7, 2005 06:05 PM




All times are GMT -4. The time now is 06:52 AM.