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1993 Chevy Silverado TPS code 22

 



Posted at Sat Jul 04, 2009 12:05 pm
By jsindiong, Have Donated
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Engine Performance problem
1993 Chevy Silverado V8 Two Wheel Drive Automatic 220000 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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Posted at Sun Jul 05, 2009 3:07 am
By KHLow2008, Certified 2CarPros Technician
Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7Reputation: 5128.7 (5129) Give Feedback | Votes: 69
   
Hi jsindiong,

Thank you for the donation.

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




 
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Posted at Sun Jul 05, 2009 3:05 pm
By jsindiong, Have Donated
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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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