EGR delete/bypass

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Aug 1, 2010 | 06:42 PM

wolffee

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From: Fort. Lauderdale FL,

EGR delete/bypass

I talked to a shop today to ask about doing an EGR delete. The tech quoted me a price and when I asked to see the egr cooler after it was deleted just to look at it he told me that he "reuses it". He said that he takes the whole thing out and mods it to be bypassed but if someone were to look it would still be there. He didnt say how infact he does it but I am curious if that is that case how could one check to see if it really was bypassed of if he just unpluged something and charged the full $600 for the delete, parts and labor. Its a very reputable shop so I am kinda torn. Is there a way to know right away besides feel of the pedal? Would there be a difference in feel of the pedal? I would think so. Thanks

Ryan

Aug 1, 2010 | 08:48 PM

cheezit

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From: N. Fort Worth, tx

you would comand egr and watch for a change in IAT2. that would tell you right away.

Aug 2, 2010 | 05:58 AM

wolffee

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From: Fort. Lauderdale FL,

Sorry but how do I "Command EGR" and what and where do you whatch for this "IAT2". Thanks

Ryan

Aug 2, 2010 | 06:23 PM

cheezit

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From: N. Fort Worth, tx

Quote:

Originally Posted by wolffee

Sorry but how do I "Command EGR" and what and where do you whatch for this "IAT2". Thanks

Ryan

from a scan tool. once eot is around 185 if you force flow egr you should see iat2 climb. if iat2 does not incress then you have no flow. its that simple if you have a scan tool that will let you do this stuff.

Aug 2, 2010 | 11:11 PM

rickatic

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This may be a dumb question but it not my first one. It sounds like he welded the ends of the egr cooler shut to bypass it. Here is the question. If this is the case, if you could pull the egr valve while the engine was running, would there be no exhaust flow through the egr port? Dunce cap ready

Aug 3, 2010 | 07:30 AM

DSMMH

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Quote:

Originally Posted by wolffee

The easiest way I have found to delete EGR flow on the early build round EGR coolers is to press a 1.375" freeze plug in the end that attaches to the downpipe. Worked for me. Maybe that is what he did.

Aug 3, 2010 | 07:53 AM

DSMMH

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Quote:

Originally Posted by rickatic

If you block off exhaust flow to the EGR cooler where it attaches to the downpipe and remove the EGR valve with the engine running, you are correct, no exhaust flow through the EGR port. With the EGR valve removed, engine running and no exhaust flow through the cooler, air would enter the intake manifold at the EGR valve port.

DSMMH