I threw a code yesterday while driving about 80mph on a local interstate. The EPC & Trac Ctrl lights came up.

I hooked it up to a scanner and had a fault for Throttle Position Sensor - Signal C.

Anyone know common causes/fixes?

2002 Audi A4 3.0L Quattro Automatic 54,000 miles.

I also have a CEL light on, but that is for an unrelated Coolant Temperature Sensor.

 

You have to adapt the throttle body in basic settings with the audi factory scan tool in both blocks 60 and 63, if that doesn't fix it you will need a TPS sensor.
The coolant temp sensor always take a crap in audi's, replaced thousands of them.

 

TPS sensor is how much work?

 

I think you just bolt one it pretty easy, to tell you the truth ive never replaced one lol. Ive never seen one go bad, have you tried the adaption yet?

 

so after 2 days of being in EPC mode for the TPS sensor, the light went off this morning and the car drives fine....

wtfAudi

 

the only thing that scares me is I had a sporadic fault for Camshaft Overage / Camshaft Adjustment.

 

Camshaft adjustment huh? Has anyone ever taken off the cam gears for any reason, i know there is a special tool that seats them before you install the timing belt which can cause a camshaft fault.

 

ugh this car is a headache

 

i know this is an old topic but im having problems with it. Isnt the tps inside the throttle body? To "change" the tps would i have to get a new TB?