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01-17-2007
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#1 |
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Join Date: Jan 2007
Location: ponte vedra beach, fla
Posts: 3
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trouble code 33
Can anyone tell me what a 33 code is? I don't have my service manuals yet, on backorder. The book that came with the tester says it is either a MAF high freq or voltage or a MAP high freq or voltage. The book is general corvette, not ZR-1 specific. Any help is greatly appreciated. Thanks, Leo
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01-17-2007
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#2 |
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Join Date: Feb 2004
Location: Ma
Posts: 404
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Re: trouble code 33
MAP sensor issue.
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1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19 |
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01-17-2007
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#3 |
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Guest
Posts: n/a
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Re: trouble code 33
Make sure the MAP sensor hose is plugged in. You currently getting a high idle?
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01-18-2007
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#4 |
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Join Date: Jan 2007
Location: ponte vedra beach, fla
Posts: 3
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Re: trouble code 33
Yes to the high idle and it is also hard to get started. The vacuum pump works like it is supposed to, but it is quite loud. Any thoughts there or where I could get a replacement.
Leo |
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01-18-2007
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#5 | |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,658
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Re: trouble code 33
Quote:
It sounds like your MAP sensor hose has come off. Dig around behind the plenum on the drivers side, I'll bet dollars to donuts that you'll find that the hose isn't connected. TomC '90ZR1 #792
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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02-07-2007
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#6 |
Join Date: Aug 2006
Location: Sweden
Posts: 95
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Re: trouble code 33
Guess you got it figured out by now. Just wanted to add to the others that I had exactly the same trouble, same code and sure enough, the tiny MAP sensor hose had come off it's place on the rear left side of the plenum.
Peter
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'92 ZR-1, black on black, mostly stock (sold) |
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