i had this problem and had to replace a part i THINK was called the throttle body modulator. does this sound correct? a friend has had the same problem occur and i'm trying to remember the part name to tell him. thanks for any help! oh, and what should he expect to pay to replace the part if that is his problem?


[Modified by oyealiz, 7:29 PM 2/11/2003]

 

Couple of parts would cause that error..

Throttle Position Sensor
TAC (Throttle Actuator Control)

Either one of these?

 

What causes these parts to fail?

 

Hey Liz, best bet for pricing is to see what the price and part # from a gm parts counter is then hit the GM parts direct or maybe a local used parts place, like Gene at Karshop, or the other good guys here. :thumbs:

 

how does "sensor pack" sound? i looked in the box i thought the part came in this morning. then i saw "sensor" on the ticket and thought it was for WHEEL sensors. i've pulled it back out now and it says "sensor pack." part no. 17113566.

I believe this is it! But how does my friend know that's what he needs? Should he risk just changing it? it'd be as cheap as a service visit, i think. my ticket says $80.76 counting shipping. From Fichtner.

i think i could replace it for him. :)

 

Liz, you need to have them check all the codes in the DIC. If it's a hard failure there should be a code set. That code will tell exactly who caused it..

 

Yep that part is the Throttle Position Sensor...
Codes that can set are
P1120
P1220
P1221

You can buy one here
http://www.moreperformanceinc.com/accorvette.htm

More info on the TPS.

Throttle Position (TP) Sensor Replacement
Removal Procedure




Disconnect the TP sensor electrical connector.



Remove the TP sensor attaching screws.
Remove the TP sensor.

Notice
The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent, as damage may result.


Installation Procedure




Install the TP sensor on the throttle body with the throttle valve in the closed position. Make sure the TP sensor lever lines up with the TP sensor drive lever on the throttle shaft.

Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


Install the TP sensor attaching screws. Tighten
Tighten the TP sensor attaching screws to 2 N·m (18 lb in).


Connect the TP sensor electrical connector.


:cheers:

 

thanks ever so much! :) we'll see if my friend lets me tackle it. :lol:

 

A little knowledge is dangerous

 

Easy now Bob! :smash: