Throttle sensor error
Le Mans Master
Joined: Jul 2007
Posts: 5,501
Likes: 1,818
From: Arkansas
St. Jude Donor '09 thru '17,'22 thru '26
Several parts stores have code readers and will read and clear the code for you. Call and check with the most popular Zone and Advanced brands.
Last edited by BearZ06; Oct 28, 2009 at 07:51 PM.
Safety Car
Joined: Jul 1999
Posts: 3,559
Likes: 207
From: Olathe KS
Not on my Vettes, but I did get this on my '07 Tahoe 5.3L just recently.
TPS replacement is not as simple as it was in the past. It is no longer a $30 part you screw on to the throttle body. Now GM only "services the part" as an entire $200+ throttle body. The TPS clips to the throttle body, and it can be interchanged, but it is not sold separately. Go figure.
That is the way it was on the Tahoe...assume it is similar on the LS engines with drive by wire...
Bottom line, the replacement throttle body (complete w/ new TPS potentiometer) fixed the SES ("Service Engine Soon") light problem I was having on the Tahoe.
You can always reset it (the SES) as a "quick fix", I did myself a couple of times, but you will likely find the SES comes on more frequently as the TPS ages and goes from bad to worse, throwing the SES light and code P0121 I seem to recall?) more and more often, until it goes from an every couple months type deal to a daily deal when the TPS is near shot.
Good luck.
-CKB
TPS replacement is not as simple as it was in the past. It is no longer a $30 part you screw on to the throttle body. Now GM only "services the part" as an entire $200+ throttle body. The TPS clips to the throttle body, and it can be interchanged, but it is not sold separately. Go figure.
That is the way it was on the Tahoe...assume it is similar on the LS engines with drive by wire...
Bottom line, the replacement throttle body (complete w/ new TPS potentiometer) fixed the SES ("Service Engine Soon") light problem I was having on the Tahoe.
You can always reset it (the SES) as a "quick fix", I did myself a couple of times, but you will likely find the SES comes on more frequently as the TPS ages and goes from bad to worse, throwing the SES light and code P0121 I seem to recall?) more and more often, until it goes from an every couple months type deal to a daily deal when the TPS is near shot.
Good luck.
-CKB
Last edited by bub; Oct 28, 2009 at 10:50 PM.
