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  #1  
Old 12-01-2012, 01:25 PM
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EGR cooler delete with stock programming

Can you delete the EGR coolers on a 6.4 (leaving the valve/housing in place and plugged in) on the stock programming with no drivability or reliabilty concerns?

I've done some searching and can't seem to find a definitive answer. I am aware that a P0401 insufficient EGR flow DTC will illuminate the check engine light but other than that will anything else happen on bone stock tuning?
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Old 12-01-2012, 05:36 PM
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Do you mean without a tuner? If so, not that I know of.

If you mean with something like a Mini Maxx, then you could just leave it on No Power (essentially stock tuning) and they aren't needed.
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Old 12-02-2012, 05:50 AM
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yes without a tuner. just the coolers deleted, EGR valve still plugged in, DPF still in place. I don't care about the check engine light, all I need to know is if driveability will be affected
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Old 12-02-2012, 05:52 AM
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I would think that it would go into limp mode. Don't know that for sure though.
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Old 12-02-2012, 10:19 AM
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I'm with superduty6.4. I think it'll go into limp mode if something major like EGR is "broken."

I'm not 100% though. You could try it and let us know. LOL
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Old 12-02-2012, 10:57 AM
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I've had a few trucks in the past that had EGR codes stored in them with no driveability issues. Never ran into a P0401 (EGR insufficient flow) on a 6.4L though so I'm unsure of what it will cause. Typically the EGR system on a 6.4 doesn't get plugged up.

I may have to try it. There are quite a few EGR cooler delete kits on ebay and none of them mention running a tuner.
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Old 12-02-2012, 11:05 AM
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Quote:
Originally Posted by sinner6.0L View Post
I've had a few trucks in the past that had EGR codes stored in them with no driveability issues. Never ran into a P0401 (EGR insufficient flow) on a 6.4L though so I'm unsure of what it will cause. Typically the EGR system on a 6.4 doesn't get plugged up.

I may have to try it. There are quite a few EGR cooler delete kits on ebay and none of them mention running a tuner.
All the EGR delete kits will require a tuner to properly delete them however to run EGR delete tuning you would have to also delete the dpf. I don't think there are any tuners that would only delete the EGR and leave the dpf intact.
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Old 12-03-2012, 06:29 PM
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I dont see why you couldnt guys run the blocker plates without a tuner
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Old 12-03-2012, 06:32 PM
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I've been getting a rash of 6.7s with plugged EGR coolers and they don't do anything in the ways of derated power or limp mode. They all run fine with just a check engine light

If I get the go ahead I'm probably going to try this on a 6.4.
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Old 12-03-2012, 07:50 PM
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The problem is, your EGR is still getting clogged up. Look at pictures of what the EGR looks like even after 50,000 miles and you'll probably want to delete the whole thing.
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