P0121

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Aug 14, 2002 | 10:20 AM

BLKWS6

Thread Starter

TECH Veteran

Joined: Feb 2002

Posts: 4,049

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From: Loganville, GA

P0121

Just got this code on the way to work this morning....TPS insufficient activity....anybody got any ideas how to fix...? duh...of course yall do.....throw'em at me....? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Aug 14, 2002 | 10:31 AM

dfarmercse

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Joined: Apr 2002

Posts: 318

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From: Lake Charles Louisiana

Re: P0121

Check th connection to the TPS. Also you can use atap or a meter and see if the sensor is working.

Aug 14, 2002 | 02:21 PM

XAntivenomX

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Joined: May 2002

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From: Howell, MI

Re: P0121

TPS voltage at idle should be about .6. I have been getting P0121 and P0122. Think i have a wiring problem. THis code can be related to several things including the IAC and MAP. The PCM predicts a certain throttle position, and if the actual TP is below that predicted by the PCM, this code sets.
I'm sure there is more, but that is all I know for now.