P1121 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


OBD-II Trouble Shooting Got a code reader? Find out what your GM car's Check Engine light is trying to tell you (and then turn Check Engine light off).

 
 
 
 
Thread Tools Search this Thread
Old 09-26-2009, 12:33 PM   #1
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default P1121

P1121

Description
TP SENSOR CIRCUIT INTERMITTENT HIGH VOLTAGE

Throttle Position (TP) sensor measures amount of throttle
opening. PCM uses TP sensor information for fuel delivery
calculations. TP sensor readings during acceleration are much higher
than those during deceleration or idle. DTC P1121 sets if PCM senses
TP sensor voltage intermittently greater than 4.7 volts.

Symptoms
You likely won't notice any drivability problems.

Causes

  • TP signal voltage is intermittently greater than 4.7 volts.
Solutions
Danthurs is offline  
 
 
 


Tags
obd2, obdii, p1121

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 11:45 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.