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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EGR code

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Old Aug 8, 2006 | 09:32 PM
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Default EGR code
Hey guys i got a code and my friend today at work read it for me and says that my EGR is malfuctioning. I wonder what could possibly be causing this or is it just clogged. What are the effects of a clogged or malfuctioning EGR i have noticed my car is running very rich and have lost alot of gas mileage even though i don't drive it often. If cleanable how would i go about cleaning it. Thanks for any info guys

Jason
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Old Aug 9, 2006 | 01:00 AM
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A bad EGR could cause a pinging or pre-ignition if it is not working at all, or a very rough idle if it is stuck open, but it shouldn't affect fuel mixture.
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Old Aug 9, 2006 | 02:24 PM
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what is the easiest way to go about cleaning the EGR valve. Is there a way to clean it or just get a new one.

Jason
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Old Aug 9, 2006 | 06:40 PM
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anyone? know anything about this?
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Old Aug 9, 2006 | 08:39 PM
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can of 2+2 and a metal coat hanger...depending on how much carbon is build up.
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Old Aug 9, 2006 | 11:38 PM
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ok guys where can i get 2+2. Is that like a throttle body type cleaner?

Thanks Jason

Also anyone have a diagram of this i mean i know where it is i just like to know what i'm actually taking apart thanks
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Old Aug 10, 2006 | 05:05 PM
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not a diagram...but may help


http://shbox.com/1/4th_gen_EGR.html



oh and 2+2 is just carb cleaner
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Old Aug 10, 2006 | 05:13 PM
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Default 91.75
91.75 is how much a new one is. I just bought one today. Id recommend doing that too. All there is to it is getting a 1/2 inch wrench and taking the 2 nuts off the back and slipping the hose off the top. I would HIGHLY recommend doing this when its cold. Even if you dont want to buy one at least make it easy and take it off for a good cleaning job. Replace the gasket too when you put it back on.
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Old Aug 10, 2006 | 08:11 PM
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thanks guys just got done with the job did not seem that bad my check engine light went off. I removed it and soaked it with carb and choke cleaner chunks of carbon fell out of it. The gasket seemed very fresh so i did not bother replacing it. We will see how it runs now i first thought i had a Miss fire when my check engine light came on i hope this is why it was idiling ruff.

Jason
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