1993 Chevy Silverado TPS code 22

Tiny
JSINDIONG
  • MEMBER
  • 1993 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
The engine of my 93' Chevy pick-up idles high. It also shifts hard. It started a month ago a couple of times, then ran fine for a while. It has started back up again. I get a code of 22. I've replaced the TPS and Idle Air Control valve. Didn't help. Any ideas?
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Saturday, July 4th, 2009 AT 3:05 PM

2 Replies

Tiny
KHLOW2008
  • EXPERT
Hi jsindiong,

Thank you for the donation.

Here are the schematics and flowchart for analysis. Go through them and see if it helps.


http://www.2carpros.com/forum/automotive_pictures/192750_Code22TPSC500Fig12_1.jpg



http://www.2carpros.com/forum/automotive_pictures/192750_Code22TPSC500a01a_1.jpg



http://www.2carpros.com/forum/automotive_pictures/192750_Code22TPSC500a01b_1.jpg



http://www.2carpros.com/forum/automotive_pictures/192750_Code22TPSC500a01c_1.jpg

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Sunday, July 5th, 2009 AT 6:07 AM
Tiny
JSINDIONG
  • MEMBER
I actually fixed the problem this morning. I had been removing the fuse to the ECM and turning the key to run, thinking it erase its memory. Tried disconnecting the battery for a few minutes. Started it up and it runs just fine now! Yea!
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Sunday, July 5th, 2009 AT 6:05 PM

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