IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

IS250 2006 DTC code P2120 & P2121

Thread Tools
 
Search this Thread
 
Old 08-01-15, 11:28 PM
  #1  
aleborjas
Driver School Candidate
Thread Starter
 
aleborjas's Avatar
 
Join Date: Jul 2015
Location: Florida
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default IS250 2006 DTC code P2120 & P2121

hi, i am getting this two codes not together sometimes shows one and sometimes show the other and the car sometimes has no gas pedal you can floor it and the car barely revs or half of the gas travel is dead i think that is limp mode but that happen driving regular but if i pass a speed bump or hit something on the road it goes limp mode i let off the gas pedal and it comes back on or if not i have to shut the car off then on again. id checked and cleaned everything fuses, relays, TB connector, i cleaned TB also what do i need to change???
Old 08-02-15, 07:19 AM
  #2  
Bichon
Super Moderator
 
Bichon's Avatar
 
Join Date: Dec 2005
Location: NJ
Posts: 5,282
Received 257 Likes on 227 Posts
Default

I believe those codes point to the accelerator pedal position sensor. The car is throttle-by-wire, and when you step on the gas there are a pair of potentiometers rotated by the pedal that relay that information to the computer.
Old 08-03-15, 11:55 AM
  #3  
Gville350
Moderator
iTrader: (10)
 
Gville350's Avatar
 
Join Date: Mar 2011
Location: South Carolina
Posts: 11,574
Likes: 0
Received 433 Likes on 385 Posts
Default

That's a safety issue in my mind. Get it fixed ASAP.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nannerz926
ES - 1st to 4th Gen (1990-2006)
2
01-26-18 02:40 PM
dendenyc
IS - 3rd Gen (2014-present)
7
12-03-15 05:05 PM
Bleak
Performance & Maintenance
5
07-27-12 07:17 PM
kylessc400
Performance & Maintenance
2
02-15-06 11:52 AM



Quick Reply: IS250 2006 DTC code P2120 & P2121



All times are GMT -7. The time now is 12:44 PM.