Throttle Control Sensor

My check engine light came on the other day… I went by Auto Zone this afternoon for their free diagnostic check..

The guy said it reads a “121” on his box, he says it’s the throttle control sensor?… Anyone ever had this trouble…. Or know where it’s located??? How hard to replace?

Thanks,
Bill

I think this is called the Throttle Position Sensor. Do a search for Throttle Position Sensor and TPS. Also check out the how-to by svx_commuter

Thanks Garrett,

... and thanks to svx_commuter for the "fix". It Worked!!!

Bill

[svx_commuter]

You are welcome.

Let us know. What did you fix? What was your car doing since it had a bad TPS?
I am not familar with auto zone. Did they hook up a "scan tool" for the free diagnostic?
FYI It is also possible to run the diagnostics yourself. It's built into the SVX.

Originally posted by svx_commuter
You are welcome.

Let us know. What did you fix? What was your car doing since it had a bad TPS?
I am not familar with auto zone. Did they hook up a "scan tool" for the free diagnostic?
FYI It is also possible to run the diagnostics yourself. It's built into the SVX.

but it's so much easier to goto autozone, mine is open 24 hours a day, 7 days a week really comes in handy

Svx_commuter,

I have a ’96 Lsi, the only problem I noticed (other than the check engine light) was a slightly rough idle. AutoZone is an auto parts chain in Alabama, (I'm not sure about other states?) they offer a free diagnostic check with a device that plugs into the connector in the dash. I guess with the assumption that you’ll buy the parts from them.

I followed the steps in your post; marked the TPS (so I’d put it back correctly), cleaned it several times with carburetor/choke cleaner, dried it with my air compressor and replaced. The check engine light doesn’t come on anymore and it idles smooth!!!

Thanks again,

Bill

BTW- where do you live in N. Jersey? I lived in Leonia for 16 years, before my dad transferred to AL in 1970…