C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Exhaust affecting the EGR

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Old Oct 14, 2007 | 11:23 AM
  #1  
Bensons86's Avatar
Bensons86
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From: Kansas City Missouri
Default Exhaust affecting the EGR

I read on one post that someone was saying that the lack of back pressure could make the EGR code pop up. My car started out with the 3 cat system, one on each pipe going down and one in the middle. The two in the beginning have been completely removed and the middle cat has been gutted. Could this be why I have a code 32? Does it make any noticeable difference anywhere? Is there any way to know for sure if this is the problem?
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Old Oct 14, 2007 | 09:38 PM
  #2  
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RandyJ75
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From: Mt Laurel NJ
St. Jude Donor '06-'07
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If your car still has a cat on it, I doubt lack of backpressure is your problem. You have basicly two choices, one is to buy an FSM and trouble shoot the problem, or do an advanced search on EGR find out how to delete it.

Good Luck

Randy
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Old Oct 15, 2007 | 10:57 PM
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Bensons86
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From: Kansas City Missouri
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It still has a cat, just gutted. Is that the same thing?

Does a malfunctioning EGR affect anything?
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Old Oct 15, 2007 | 11:10 PM
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From: OKlahoma City OK 89 vert
Default egr

I had that code and just unpluged it at the right fuel rail. Light went off. Later I pulled the cats off, smog pump, all EGR stuff and put plates over all the holes. Cut the tubes off the headers and welded the holes. Gives you more room to change plugs and cleaned up the engine.
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