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Increase in DEF consumption since Hot Tune  RSS feed
Forum Index » 2014+ Grand Cherokee (WK) EcoDiesel
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nydieselguy

Joined: 26/04/2017 17:27:44
Messages: 2
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Hi Guys,

First let me start off by saying that I truly do love your tune and enjoy every aspect of it. My only concerns are that I seem to be using 2x's the amount of def. I thought I would be using even less def because of the EGR delete. Is it possible that your tune can cause this or is there another unrelated problem occurring. To provide you with a little more info, I've had a rather heavy foot since using the tune and have been doing a lot of city driving. Let me know what you think.

GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 353
Location: Southeast Michigan
It is best to not go by the gauge, but rather fill it up to top each time divided by miles driven. With a properly functioning system it should burn 8 gallons or so every 10000 miles. A high flow DEF injector or a sticking one could lead to excessive DEF consumption. The injector can be removed and cleaned relatively painlessly.
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nydieselguy

Joined: 26/04/2017 17:27:44
Messages: 2
Offline
Okay thanks for the tip. I have actually been under the jeep to look at the injector and see if its clogged up or stuck. I used Shawn's video to guide me. https://www.youtube.com/watch?v=Yie_4AdDp7I&t=324s
There really wasn't anything there. What would cause a high flow injector?

GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 353
Location: Southeast Michigan
A failing DEF injector could cause high DEF consumption, not a very common issue though.
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