So I changed out the TPS and Unplugged the EGR and... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-11-2005, 01:26 AM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Twin Falls, Idaho
Posts: 7,545
Thanks: 0
Thanked 1 Time in 1 Post
Hans is on a distinguished road
Default So I changed out the TPS and Unplugged the EGR and...

The trans problems went away.

The TPS was reading 6 volts at idle, now it is 1/10th of that.




Still rough, cant break the tires, and the boost does not get above 7 but we are getting there
Hans is offline   Reply With Quote
Old 07-11-2005, 02:24 AM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Plug your EGR back in. It'* causing the roughness by it'* absence.

Good job on the TPS. The trans uses the TPS signal to know when to shift, and to determine if it should lock up the TCC or not.
willwren is offline   Reply With Quote
Old 07-11-2005, 04:03 AM   #3
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Twin Falls, Idaho
Posts: 7,545
Thanks: 0
Thanked 1 Time in 1 Post
Hans is on a distinguished road
Default

Quote:
Originally Posted by willwren
Plug your EGR back in. It'* causing the roughness by it'* absence.

Good job on the TPS. The trans uses the TPS signal to know when to shift, and to determine if it should lock up the TCC or not.

When plugged in the EGR Valve makes it loose power and run rough. It still runs rough but with that out I can spin the tires ok. Problem right now is that it gets to about 35 and is still confused. It has lots of low end starting power but the engine still has hardcore issues. The Check Engine light is still on as the traction control light. It is amazing how crappy it was when I thought the torque converter had gone mad when it was just a silly TPS.


* The boost gauge at WOT NEVER EVER gets above that 3/4 mark

* The Oil pressure gauge never gets to 40..usually 30 or 35 according to guage

* The RPMs refuse to go above 4 Grand
Hans is offline   Reply With Quote
Old 07-11-2005, 07:19 AM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Making great progress Hans. You mentioned the car was not driven for years? I'm sure by now you have changed the oil. Did you notice any difference in the pressure when you changed it.
BillBoost37 is offline   Reply With Quote
Old 07-11-2005, 11:03 AM   #5
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: MI
Posts: 2,246
Thanks: 0
Thanked 0 Times in 0 Posts
Logan is on a distinguished road
Default

Quote:
Originally Posted by Hans
* The RPMs refuse to go above 4 Grand
There is no power up there anyway
Logan is offline   Reply With Quote
Old 07-11-2005, 11:05 AM   #6
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Quote:
Originally Posted by Logan
Quote:
Originally Posted by Hans
* The RPMs refuse to go above 4 Grand
There is no power up there anyway
Thinking about this again. The rpm over 4 grand is this in gear or park/neutral. Off the top of my head I thought the rev limiter in park/neutral under 15mph was around that mark.
BillBoost37 is offline   Reply With Quote
Old 07-11-2005, 12:52 PM   #7
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Twin Falls, Idaho
Posts: 7,545
Thanks: 0
Thanked 1 Time in 1 Post
Hans is on a distinguished road
Default

Quote:
Originally Posted by BillBost37
Making great progress Hans. You mentioned the car was not driven for years? I'm sure by now you have changed the oil. Did you notice any difference in the pressure when you changed it.
yes had walmart throw some oil in there before driving back.


The oil pressure gauge may be bad as well.

The RPM Problem is in gear. It also has the rev limiter in park/neutral where you cant get above 3500 or 4 but in drive the car JUST CRAPS OUT and does not get higher than 7 psi or whatever that middle mark between 0 and 10.

I really need a scanner that can scan this car, Any model reccomendations welcome
Hans is offline   Reply With Quote
Old 07-11-2005, 12:59 PM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

I'd be very tempted to remove and thoroughly clean the EGR, or maybe even swap them between the cars.
willwren is offline   Reply With Quote
Old 07-11-2005, 01:02 PM   #9
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Have you done the basic tune up items yet? Maybe checked the plugs?

The same scanner that will read your 94 Olds will read that 94 SSEi... They have the Same PCM with a Diffrent EPROM chip...

Is the SES light on at all? You may want to see if the PCM is seeing any problems with the EGR and or the like...

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 07-11-2005, 03:53 PM   #10
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Darn...already had the oil changed. In reading something on the 95 FSM it mentions a pressure valve down at the oil filter area. It is supposed to help diagnose oil pump versus worn bearings. LMK if you get a mechanical gauge on it and it really is low and you'd like to diagnose pump/bearings.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
empty bolt hole, unplugged connector Bonnevillan 1992-1999 4 03-24-2008 05:56 PM
MAP, EGR and TPS GM Part #s Imastud 1992-1999 0 04-14-2007 08:38 PM
so who unplugged the server??? corvettecrazy Lounge 18 03-23-2006 12:29 PM
Changed intake gaskets, now P0121 TPS performance code ! 1997_LeSabre 1992-1999 2 01-12-2005 01:54 AM
Unplugged Harness/Cigarette Lighter wiring Logan General GM Chat 7 11-03-2004 11:55 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:49 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.