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Discussion Starter · #1 ·
hey i have a 2007 chevy 2500hd classic with a lbz. I have a 4 in turboback with a edge uice with attitude. I installed a PPE codeblocker and a egr blocker plate. i drove the truck for 3 weeks after installing this stuff without getting a engine light. Then one day it came on. The code was 402(EGR excessive flow). I was driving a 45 kmh. No hard acceleration or anything. Normal driving. ANY help is greatly appreciated
 

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Check your connections to your code blocker. did you solder them or did you use scotch locks?
 

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Discussion Starter · #3 ·
i used butt connectors, but i was thinking i probably shoould solder them.
 

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Yeah, solder them and see if it goes away.
 

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Discussion Starter · #5 ·
yeah i will try that thanks. But if that does not work then i dont know what to do... send the code blocker back for a new one maybe?.
 

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Yeah, probably...did you double check you blocker plate?
 

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Discussion Starter · #7 ·
what do you mean, check if it is fully seated.? or check if its leaking
??
thanks
 

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both..fully seated and tight.
 

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Discussion Starter · #9 ·
would that cause a code? i am guessing yes since code 402 is egr excessive flow??? the egr blocker i received had LBZ etched into it. However it did not fit very well at all. I dremeled it out slightly to get a better fit. Maybe i should dremel it out some more to get a better fit. Thanks
 

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Yeah, I would check that if your truck still trips the codes after you solder your code blocker in.
 

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Discussion Starter · #11 ·
Ok thanks for the help i really appreciate it.! Can the dealer void my warranty with these items installed(4inch turboback exhaust), egr blocker plate, and the juice with attitude. Or any suggestions of what i should take off before i bring it in for serviceing. I have 5000KMS and it's due for its oil change. Oh one more question, would you recommend changing to synthetic oil.
Thanks
j.b
 

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I would take off the juice with attitude. The exhaust shouldn't be a big deal, but the programmer will probably not be the best thing to leave in there if you haven't talked to your service manager. I would go another oil change before switching over to synthetic. Now, just because you made modifications they can't legally void your warranty just because you did that, but they will give you a hard time in most cases and tell you that it is voided. Obviously the warranty on the exhaust is null and void since it isn't there (stock exhaust). I guess I am lucky with my dealer since they sold me the truck with the TST already installed.
 
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