All Posts (SurfnSun)
Re: LT4 throwing some codes....input appreciated. |
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Guru Newb
 
Joined:
2008/2/18 0:00 Posts:
5
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Ok this is funny. The light went out today while driving.
I replaced one of the check valves a month or so ago. I bought it a Napa and the non-threaded sided was actually a lot smaller than the GM piece...I had to use a large zip tie to get the line to tighten around it enough to stay on vs the plastic piece GM used. Perhaps I should go to the dealer and go for 2 new GM check valves and replace them both?
Posted on: 2008/4/26 11:11
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Re: LT4 throwing some codes....input appreciated. |
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Guru Newb
Joined:
2008/2/18 0:00 Posts:
5
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Yup thats me Been trolling the Corvette boards almost 9 years now
Posted on: 2008/4/24 3:03
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Re: LT4 throwing some codes....input appreciated. |
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Guru Newb
Joined:
2008/2/18 0:00 Posts:
5
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In regard to a couple of questions...
I live in Atlanta GA (unfortunately) Yes the car feels weak on the top end compared to what it used to. I was also told a bad o2 sensor could cause some of these lean problems.
Posted on: 2008/4/23 23:05
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Re: LT4 throwing some codes....input appreciated. |
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Guru Newb
Joined:
2008/2/18 0:00 Posts:
5
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Stock to the mufflers. 88k miles. I haven't had the car a year yet but I got a huge folder of documentation. The guy I bought it from is a hard core enthusiast and owns 2 GS's
Posted on: 2008/4/23 1:54
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LT4 throwing some codes....input appreciated. |
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Guru Newb
Joined:
2008/2/18 0:00 Posts:
5
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I posted on CF but I know the core of the tech crew is here now.
Let me know what you think... P0174 - Fuel Trim Bank Two - lean P0171 - Fuel Trim Bank One - lean P1416 - Air system Fault Bank 2 - port air circuit malfunciton P0507 - IAC Circuit Condition or Idle speed high/low - high idle I think the cats might be clogged causing some of this.
Posted on: 2008/4/23 0:28
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