Mechanics

OBD 2 CODE P0121

2007 Chevrolet Cobalt • 4 cylinder FWD Automatic • 92,000 miles

I am getting a check engine light that pulls code P0121 it said something about Throttle position sensor circuit performance range. Does that mean my throttle position sensor is going bad? Is this something I can replace myself?
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Samms21
August 30, 2011.




It has to be diagnosed before you change anything do you have a scan tool that can read live engine data and a multimeter?

Saturntech9
Aug 30, 2011.
I cleared the code now the engine won't idle normal and the throttle seems super sensitive
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Tiny
Samms21
Aug 30, 2011.
Clean out the idle air control valve and see what happens

Tiny
Rasmataz
Aug 30, 2011.
Not sure where that is

Tiny
Samms21
Aug 30, 2011.

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