Codes 21, 22, 33
Thread Starter
Pro
Joined: Apr 2001
Posts: 663
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From: Omaha, Ne GO BIG RED
Codes 21, 22, 33
Ok, just got done replacing TB after a freak accident, while I had it off, I replaced the IAC and the TPS. I know the TPS is way out of adjustment, didn't have my voltmeter with me last night, but will have tonight. Got a code 21 and 22, which I know is directly related to the TPS being out of adjustment. Took the car around the block and after a few minutes it started running terribly rough. Limped it home and check the codes again, also pulled a 33. Will the TPS being out of whack have a chance of setting this code as well? I didn't have any codes previous to the replacement. Also, I replaced the TB with another stock 48mm one, so no upgrades to speak of.
Hoping something didn't mess the MAF up while I was changing things.
Thanks in advance
[Modified by 86Coupe, 9:00 AM 3/9/2004]
Hoping something didn't mess the MAF up while I was changing things.
Thanks in advance
[Modified by 86Coupe, 9:00 AM 3/9/2004]
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Re: Codes 21, 22, 33 (86Coupe)
[QUOTE]Ok, just got done replacing TB after a freak accident, while I had it off, I replaced the IAC and the TPS.
QUOTE]
Did you properly adjust your new IAC or did you just bolt in on and go? If not do this: https://www.corvetteforum.com/techti...D=55&TopicID=2
Then get a hold of a Voltmeter and adjust your TPS to about .58 Volts closed and 4.0+ volts WOT. A mis adjusted TPS can make a noticeable difference in perfromance.
And for your code 23 scroll down to the bottom of this link and follow the diagnostic procedure for code 23. http://www.c4vettes.com/ecm.htm
Good luck:thumbs:
[Modified by 86PACER, 11:45 AM 3/9/2004]
QUOTE]
Did you properly adjust your new IAC or did you just bolt in on and go? If not do this: https://www.corvetteforum.com/techti...D=55&TopicID=2
Then get a hold of a Voltmeter and adjust your TPS to about .58 Volts closed and 4.0+ volts WOT. A mis adjusted TPS can make a noticeable difference in perfromance.
And for your code 23 scroll down to the bottom of this link and follow the diagnostic procedure for code 23. http://www.c4vettes.com/ecm.htm
Good luck:thumbs:
[Modified by 86PACER, 11:45 AM 3/9/2004]
