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1985 Iroc z28 code 22

Old Mar 26, 2015 | 08:16 PM
  #1  
GageBrand's Avatar
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Car: 1985 Iroc-z28
Engine: 5.7l TPI
Transmission: 700r4
Axle/Gears: Stock
1985 Iroc z28 code 22

I'm getting a code 22, I replaced the TPS sensor with a brand new one today but I'm still getting a high idle and hard/delay shifts. Also I'm still getting the code after replacing it, what is the next possible issue it could be?
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Old Mar 29, 2015 | 11:53 AM
  #2  
Megaman11's Avatar
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From: Madison, WI
Car: 1987 Trans am
Engine: 305 TPI
Transmission: 700r4
Re: 1985 Iroc z28 code 22

Originally Posted by GageBrand
I'm getting a code 22, I replaced the TPS sensor with a brand new one today but I'm still getting a high idle and hard/delay shifts. Also I'm still getting the code after replacing it, what is the next possible issue it could be?

Try disconnecting the neg. battery cable for a few
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Old Mar 29, 2015 | 02:36 PM
  #3  
GageBrand's Avatar
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Joined: Feb 2013
Posts: 98
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Car: 1985 Iroc-z28
Engine: 5.7l TPI
Transmission: 700r4
Axle/Gears: Stock
Re: 1985 Iroc z28 code 22

Originally Posted by Megaman11
Try disconnecting the neg. battery cable for a few
I will give that a shot, I've tried adjusting it also and it still runs terrible, idles high and delayed shifts and bad throttle response. So if the disconnecting the battery cable doesn't work im going to assume its a bad connection
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Old Mar 31, 2015 | 03:08 PM
  #4  
RED85TPI's Avatar
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From: Las Vegas
Car: 1985 Trans Am
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 9 bolt Borg Warner Posi 3.27
Re: 1985 Iroc z28 code 22

If you have a high idle, I would try resetting the Idle Air control valve and adjusting minimum air screw. It's jobs is to allow a minimum amount of air through the throttle body and if it gets stuck open, to much air will be fed through the throttle body which will cause high idling and can cause improper air/fuel mixture.

There is a procedure on this site. You can find it by searching IAC adjustment.
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