tps code problems....
03-18-2006, 04:17 AM
#1
On The Tree
Thread Starter
iTrader: (5)
Join Date: Nov 2005
Location: fresno ,ca
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
tps code problems.... just got done putting a new cam in my car and i keep throwing a p0121 tps trouble code changed the sensor and still it throws it + my idle is surging any help please 
03-18-2006, 06:50 AM
#2
check your connections at the sensor and at the computer.I had a problem like that once and it was just dirt and grime built up at the computer connection.If that doesnt work then check the wires to make sure something didnt get pinched or frayed.
03-18-2006, 11:19 PM
#4
11 Second Club
iTrader: (16)
Join Date: Nov 2003
Location: Harlingen, TX
Posts: 329
Likes: 0
Received 0 Likes
on
0 Posts
mine throws 121 and 122, what areas need to be tuned. have hptuners just not sure what to adjust and how far. mine also started after cam install, could that affect the tcs also, because ever since this started my tcs has been inop.
03-20-2006, 11:34 AM
#6
12 Second Club
iTrader: (13)
Join Date: Nov 2001
Location: San Diego, CA
Posts: 1,898
Likes: 0
Received 0 Likes
on
0 Posts
That will solve the SES code but not solve the root cause of the problem.
The problem lies in more air coming in than the PCM thinks there should be (and hence it thinks you're at a higher throttle position than the TPS is reporting).
It's also common for these symptoms to whack your TCS where the button won't turn it on/off.
RAF, VE and MAF tuning are the key.
Rob (Bad30th)
The problem lies in more air coming in than the PCM thinks there should be (and hence it thinks you're at a higher throttle position than the TPS is reporting).
It's also common for these symptoms to whack your TCS where the button won't turn it on/off.
RAF, VE and MAF tuning are the key.
Rob (Bad30th)
03-20-2006, 03:52 PM
#7
TECH Regular
iTrader: (3)
Join Date: Oct 2004
Location: Allentown PA
Posts: 473
Likes: 0
Received 0 Likes
on
0 Posts
Im also having a similar problem with my car and its tuned. It throws the tps code at a light when im sitting there. It also throws a map code. When the tcs shuts off it goes into some kind of limp mode and wont downshift and will only rev to 3500 rpm and shift but once you start driving about 5 seconds later it resets and the tcs will come back on and its out of limp mode. Im going to try and get my tune checked in alittle bit because from what I have heard its a tuning issue.
Trending Topics
03-20-2006, 05:37 PM
#8
On The Tree
iTrader: (11)
Join Date: Dec 2004
Location: illinois
Posts: 102
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Bad30th
That will solve the SES code but not solve the root cause of the problem.
The problem lies in more air coming in than the PCM thinks there should be (and hence it thinks you're at a higher throttle position than the TPS is reporting).
It's also common for these symptoms to whack your TCS where the button won't turn it on/off.
RAF, VE and MAF tuning are the key.
Rob (Bad30th)
The problem lies in more air coming in than the PCM thinks there should be (and hence it thinks you're at a higher throttle position than the TPS is reporting).
It's also common for these symptoms to whack your TCS where the button won't turn it on/off.
RAF, VE and MAF tuning are the key.
Rob (Bad30th)
03-22-2006, 08:15 AM
#9
10 Second Club
iTrader: (5)
Join Date: Nov 2003
Location: Ft. Lauderdale, FL
Posts: 1,649
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HumpinSS
Engine diagnostics ---> General and change the P0121 min and max map
I did find the P0121 Min and Max
Mine are set to
Min 65
Max 55
What should I adjust them to?
Thanks for your help,
Bob
03-22-2006, 08:44 AM
#10
12 Second Club
iTrader: (13)
Join Date: Nov 2001
Location: San Diego, CA
Posts: 1,898
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by SlickVert
I am also getting a code P0121 after a cam install.
I did find the P0121 Min and Max
Mine are set to
Min 65
Max 55
What should I adjust them to?
Thanks for your help,
Bob
I did find the P0121 Min and Max
Mine are set to
Min 65
Max 55
What should I adjust them to?
Thanks for your help,
Bob
Just widen the range until the code stops being thrown. I'd start with min 50 max 70. Again, this is just a bandaid fix to keep the code from being thrown, not an actual fix for the root cause of the problem.
Cheers,
Rob (Bad30th)
03-22-2006, 10:22 AM
#11
FormerVendor
iTrader: (1)
Join Date: Feb 2002
Location: Waldorf, MD
Posts: 3,059
Likes: 0
Received 0 Likes
on
0 Posts
The root cause of the problem cant be fixed with the ve table or the likes. The PCM expects to see a certain rpm for a certain throttle position if it doesnt P0121 is thrown esp when a cam is put into the engine. In EFILive we can actually modify the tables parameters and remapp what tps% is related to that rpm in HPT all you can do is widen the test boundaries. It has nothing to do with air....
Check the description also
Check the description also
Last edited by HumpinSS; 03-22-2006 at 10:29 AM.
03-22-2006, 10:56 AM
#12
12 Second Club
iTrader: (13)
Join Date: Nov 2001
Location: San Diego, CA
Posts: 1,898
Likes: 0
Received 0 Likes
on
0 Posts
WOW, thanks for the explanation, I've been wondering WTF is up with that for a loooooong time. Nobody has ever posted the real fix.
Thanks !
Rob (Bad30th)
Thanks !
Rob (Bad30th)
03-23-2006, 01:40 PM
#13
10 Second Club
iTrader: (5)
Join Date: Nov 2003
Location: Ft. Lauderdale, FL
Posts: 1,649
Likes: 0
Received 0 Likes
on
0 Posts
Got it fixed!
Go to General and change the P0121 min and max, set them to;
Min to 105
Max to 05
Big thanks to HumpinSS and Geoff at Thunder Racing
Bob
Go to General and change the P0121 min and max, set them to;
Min to 105
Max to 05
Big thanks to HumpinSS and Geoff at Thunder Racing
Bob
04-08-2006, 03:37 PM
#14
11 Second Club
Join Date: Aug 2004
Location: minneapolis,mn
Posts: 891
Likes: 0
Received 0 Likes
on
0 Posts
Okay I'm having this same problem. The tcs will not allow my car to go to WOT I've tried adjusting it over and over and nothing will work. I have ls1edit does anyone know a fix with it? Or can I just turn off the 121 code?
My tuners being a dick and saying to start with replacing the tps. He's never heard of this problem he says.
Okay I found it in edit but still throwing the code after putting it to 05 105. just installed new tps hopefully this will help
My tuners being a dick and saying to start with replacing the tps. He's never heard of this problem he says.
Okay I found it in edit but still throwing the code after putting it to 05 105. just installed new tps hopefully this will help
Last edited by 1MEANGTO; 04-09-2006 at 04:10 PM.
