Great a few problems (Throttle position sensor code P2135) - Page 3 - SaabCentral Forums
*
Home Saab Pictures Saab Classifieds Saab Dealer Listings Saab Forum Saab Forum


Go Back   SaabCentral Forums > Saab 9-3 SportSedan, Cabrio ('04+), Combi & 9-3X, 2003-2012 > 9-3 Sedan, Convertible ('04+)/Combi & 9-3X Workshop - ALL Engines

9-3 Sedan, Convertible ('04+)/Combi & 9-3X Workshop - ALL Engines 9-3 SportSedan, Convertible ('04+)/Combi & 9-3X, 2003 - 2012 Technical & Repair

SaabCentral.com is the premier Saab All Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #41  
Old 24th October 2009
win-low's Avatar
win-low win-low is offline
SaabNut!
 
Join Date: Apr 2006                                                
Location: Houston
My Saabs: 03' 93 Vector - Silver (WOW)
Posts: 312
Default

Quote:
Originally Posted by SAAB_Stories View Post
Funny thing you mentioned that this all happened after a car wash. We just had heavy rain this past week to the point that the streets were flooding and my 2004 9-3 was at one point in water that was as high as the sidewalk.

Sadly, my check engine light came on this week and when I hooked up my reader I got the following codes:

P2122
P2138

I think its somewhat related to your P2135 code because it behaves very similar to what you described.

So this may be a sign that these pedal voltage related codes are caused by water exposure.

If water truly IS the cause, then I think we could rule out the possibility that this is caused by a faulty wire harness or any other physical damage / splicing in the wires themselves - i.e. no need to be wiggling wires or taking off the wire harness / protective wrap. Also - the water in this case would have most likely come from below so it may be the case that the damaged section of the circuitry is that which is located in an exposed section of the car's underbody down near the street - i.e. not located in any part that is up above by the engine where it is safely covered from water by the hood.

Of course, this is just my own analysis and I could be jumping to conclusions, but I'm just trying to contribute with my own evidence and logic as much as possible.

Been a few months since any of your posts. Any new discoveries? I look forward to joining in the efforts so that we can all find out the proper solution.

Is there anything that has not yet been attempted to solve these issues? I'm ready to roll up my sleeves and try working on this but don't want to repeat the same things others have done to no avail.

Please lets keep this discussion going!

Here are my symptoms: Check engine light turns on and car was drives slow, not responsive when pedal pressed down (Limp Home Mode). Check engine light turns off on its own overnight and drives fine next day at first but then check engine light turns back on and pedal becomes unresponsive again (back into Limp Home Mode).

Hey I would trace the connectors from the pedal through all the way to the other end. I am talking about disconnecting checking for corrosion and cleaning. Look in the WIS (about 5 connectors). I did it to my car and the error code has not come back for a couple of months
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #42  
Old 14th November 2009
killerniceguy killerniceguy is offline
Active Member
 
Join Date: Mar 2006                                                
Location: Calgary, Canada
My Saabs: 05 9-3t linear
Posts: 101
Default Same problem

I have the same P2135 problem. On Wednesday of this week I got a new pedal assembly installed and today I got the CEL again with the same code. It would seem the code is generated from the Throttle Control Sensor inside of the throttle body, correct?

Has anyone replaced the throttle body and had this problem go away. Any new updates on this? I plan on taking the car back to the dealer on Monday but would like to go with a solution rather than just throwing darts at the problem...

KNG
Reply With Quote Quick reply to this message
  #43  
Old 14th November 2009
win-low's Avatar
win-low win-low is offline
SaabNut!
 
Join Date: Apr 2006                                                
Location: Houston
My Saabs: 03' 93 Vector - Silver (WOW)
Posts: 312
Default

Quote:
Originally Posted by killerniceguy View Post
I have the same P2135 problem. On Wednesday of this week I got a new pedal assembly installed and today I got the CEL again with the same code. It would seem the code is generated from the Throttle Control Sensor inside of the throttle body, correct?

Has anyone replaced the throttle body and had this problem go away. Any new updates on this? I plan on taking the car back to the dealer on Monday but would like to go with a solution rather than just throwing darts at the problem...

KNG
Check my post date about, I still have had no error related to the pedal...I also changed the pedal and it didn't fix the problem
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
 
  #44  
Old 16th November 2011
j-y's Avatar
j-y j-y is offline
SaabNut!
 
Join Date: Dec 2010                                                
Location: Malaysia
My Saabs: 2005 9-3 Hirsch
Posts: 366
Default

Has anyone found a permanent solution for P2135?
Reply With Quote Quick reply to this message
  #45  
Old 16th November 2011
win-low's Avatar
win-low win-low is offline
SaabNut!
 
Join Date: Apr 2006                                                
Location: Houston
My Saabs: 03' 93 Vector - Silver (WOW)
Posts: 312
Default

Yes I solved the issue. I posted my solution on the forum. Search for it. I'm at work!
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #46  
Old 16th November 2011
Piper of Rose Piper of Rose is offline
Senior Member
 
Join Date: Sep 2006                                                
Location: usa
My Saabs: 2004 9-3 Linear
Posts: 192
Default

I have the problem solved.

Please see this thread.
http://www.saabcentral.com/forums/sh...d.php?t=217566
Reply With Quote Quick reply to this message
  #47  
Old 30th October 2012
chris50smith chris50smith is offline
New Member
 
Join Date: Oct 2012                                                
Location: Phoenix, AZ
My Saabs: 2006 9-3
Posts: 5
Default

Thanks rose!! Worked great!
Reply With Quote Quick reply to this message
  #48  
Old 23rd July 2013
ForeignIcation's Avatar
ForeignIcation ForeignIcation is offline
Saab Crazy
 
Join Date: May 2012                                                
Location: Newport News, VA
My Saabs: 2002 Saab 9-3 SE Anniversary(MT)
Posts: 715
Default

Quote:
Originally Posted by win-low View Post
I opened the peal and cleaned it. Not really much in there but a PCB and some "brushes" that pick up the position of the pedal.

I still have the same issue on my car. It goes into limp mode, I get the same error. I noticed that when my car goes into limp mode I try to "reset the pedal". I turn off the car. take the key out. press the CLUTCH and GAS PEDAL all the way down. Put the key back in the ignition. Start the car (the CLUTCH and GAS PEDAL ARE STILL PRESS ALL THE WAY DOWN) you will notice the car will not accelerate, it will the just idling. They I let go of the gas and clutch. This will fix the problem 70% of the time. Sometimes it will take a few tries.

Can anybody tell me where the connector are that go from the peal to the throttle body are?? I am asking because last week my AC blower went out. I was going to remove it.Well I reconnected the conector on the blower and POW! it came on. So maybe I have the same issue with the PEDAL POSTITION SENSOR.

I forgot to mention I replaved the pedal and I still have the same problems so I am confident the issue is not the pedal but some place downline.....

Hello: i tried your pedal trick, and my car just cranks, it NEVER turns over to even idle? Is there any reason why?
Reply With Quote Quick reply to this message
  #49  
Old 6th December 2013
Atlanta_Saab Atlanta_Saab is offline
Junior Member
 
Join Date: Oct 2007                                                
Location: Atlanta
My Saabs: 04 Linear 9-3 Hazelnut
Posts: 11
Default

I had the code p2122. after doing my research I cleaned the MAP sensor and that seemed to solve the problem. I have a 2004 9-3 Linear. I am posting this message 3 weeks after. No more CEL.
Reply With Quote Quick reply to this message
  #50  
Old 21st December 2016
Fadi Twal Fadi Twal is offline
New Member
 
Join Date: Dec 2016                                                
Posts: 2
Default

Quote:
Originally Posted by ctrlz View Post
From the WIS:

P2135

Throttle position sensor circuit; Plausibility fault between circuit 1 and 2

Symptom:
Fault indicator lamp
Cruise not working
limp home

Fault criteria:
Difference in voltage between throttle position sensors 1 and 2 is 4-8%, depending on position of throttle (4% for unactuated pedal, 8% for depressed pedal)

System reaction:
Correction of mass air flow/combustion for fuel calculation is blocked
Limited acceleration and idle function
Cruise control blocked
Secondary air switched off

WIS basically advises checking the wiring harnesses for breaks/shorts.

This is a bit of a weird one. I would remove the plastic engine shroud and see if anything got wet.

We have had some other TPS problem threads lately. I have described elsewhere (paraphrased the WIS, actually) how this works. Basically the combined output of TPS1 and TPS2 always sums to 5 V. This checksum is used by the ECM for fault detection in the TPS.

I can't find the TPS part number in the EPC. I'm not sure it's separate from the throttle body. The EPC implies that it is. It refers you to section 2-5500, which is charge air plumbing. Unfortunately the TPS is not shown there!! Maybe someone else can find this part #.
Help Help,
I am Facing a problem with My Saab 9-3 2005 , check engine light, LHM, no acceleration, high consume of gas, I have changed 3 TB, sent her to Saab workshops no one helped me, now the mechanic is telling me it is failure in the ECU, even though I remember the codes were TBS, and circuit something Failure ...
can anyone tell me what to do exactly with photos please, where are the wires should I check send me photos how can I know they are fine or not ?
Reply With Quote Quick reply to this message
  #51  
Old 21st December 2016
Diggs's Avatar
Diggs Diggs is offline
Super Moderator
 
Join Date: Oct 2003                                                
Location: Shawnee, KS
My Saabs: 2003 9³SS Linear
Posts: 14,771
Thumbs up

Quote:
Originally Posted by Fadi Twal View Post
Help Help,
I am Facing a problem with My Saab 9-3 2005 , check engine light, LHM, no acceleration, high consume of gas, I have changed 3 TB, sent her to Saab workshops no one helped me, now the mechanic is telling me it is failure in the ECU, even though I remember the codes were TBS, and circuit something Failure ...
can anyone tell me what to do exactly with photos please, where are the wires should I check send me photos how can I know they are fine or not ?
Please get the car scanned and bring us all codes. Any OBD2 reader will do this. Thanks.
__________________
The answer is almost always....Tech2
Reply With Quote Quick reply to this message
  #52  
Old 21st December 2016
Windsor Windsor is offline
SaabNut!
 
Join Date: Dec 2014                                                
Location: Connecticut
My Saabs: 2003 9-5 Aero, 2006 9-5 Wagon, 2007 9-3
Posts: 287
Default

The issue of p2135, p0638 and p1681 has become so rampant that it might deserve a sticky. Some observations:

The codes seem to be temperature (cold) related as all the posted complaints note the onset with cold weather
The codes are throttle body position related (unlike p2138 which is pedal position related)
According to the wiring diagrams, The throttle body connects to the ECU via 2 junctions, the J33 and J34. ( the pedal position sensor connects to the ECU via the H102-1 and H24-2(the one under the battery) connectors)

I too, have these codes coming up with the cold weather, triggering the check engine light. As the check engine light comes on, the engine goes into limp home mode, which causes lack of power and acceleration from a full stop but once the car gets going, there is almost normal power.

What I have also found as a symptom is that the engine surges (but not at idle). My take on this is since the throttle body is getting mixed electrical signals, the throttle responds with mixed acceleration.

There is no cable connecting the gas pedal with the throttle body. Instead, an electrical signal(s) is sent to the throttle body where there is a small motor which turns the throttle plate in response to the pedal position. My theory is that the motor gets lazy and does not respond correctly. Also, dirt in the throttle body may cause the throttle plate to stick or not close completely.

Having said that, I just recently cleaned and coated the pins at the H24-2 connector under the battery with Stabilant22. Did the same to the pins at the connector to the throttle body. It did not cure the problem. I tried the throttle reset of starting the car with the pedal to the floor as described in posts above. It would cure for a minute or two, then the check engine light would come back on and limp mode would resume.

Today, I put Stabilant 22 on the pins of the controller attached to the battery case and cleaned the throttle body with a clean rag and isoprophel alcohol. The temperature today reached 40 so at the moment, she is running like a top. I need a spell of cold weather to see if the codes come back.

I am suspecting that at the end of the day, I will need to replace the throttle body, as that seems to be where others are going to find their cures. My car is a 2007. I bought it last spring when the weather was warm but the check engine light was on with the above codes which I cleared. I was good all summer and fall until the weather finally turned cold. The service history shows the throttle body having been replaced at 75,000 miles. It now has 140,000 miles. Perhaps a throttle body is only good for about 70,000 miles?
I will keep everyone posted on how I progress. Anyone else want to chime in on this?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the SaabCentral Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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

Forum Jump


All times are GMT -4. The time now is 02:13 AM.



Powered by vBulletin® Copyright ©2000 - 2017, vBulletin Solutions, Inc.

top of page | sitemap | email us



copyright © 2003 - 2011 saabcentral.com, All rights reserved http://www.whiter.co.uk - valid xhtml - valid css
SaabCentral is an independently run website and is not affiliated in any way to Saab Automobile AB.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.