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  #1  
Old 04-27-2011, 06:45 AM
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Manually Cycling EGR Valve

I asked this within another discussion (attempted hijack!) but never got any replies.

Instead of lowering tunes once a month (?) to cycle the EGR Valve, could I rig up a toggle switch of some sort to activate it periodically?

I don't know the EGR Valve works for sure, I'm asssuming a DC actuator, and don't know if it has wiring to read actual valve position (feedback).

Anyone ever consider this? It would REALLY save alot of messing around with tunes, tranny relearn, etc.
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Old 04-28-2011, 06:34 AM
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No thoughts?
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Old 04-28-2011, 07:45 AM
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I'm a diesel noob so please forgive the dumb question. I'm curious why you need to cycle the EGR monthly? I've had my EGR turned off via my SCT tuner for a couple of weeks now and this is first I've heard of needing to cycle EGR periodically.
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Old 04-28-2011, 07:49 AM
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It'll get soot build up on it and basically freeze shut it you don't work it occasionally. So if you ever HAVE TO go back to stock, you'll get a Check Engine Light cuz it won't work.
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Old 04-28-2011, 07:52 AM
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Well that makes sense. More sense than having the damn thing in the first place.
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Old 04-28-2011, 10:31 AM
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I know the KEM tunes cycle the egr on start up. Not sure about the H&s tunes.
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Old 04-28-2011, 10:42 AM
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Yeah, some Spratan tunes cycle at idle too. I just happen to run the 275 which doesn't cycle at all. So rather than having to load a tune that cycles on occasion, I'd like to just be able to excersize the components when its convenient; like a couple times a week at a long stop light or something.
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Old 04-28-2011, 11:29 AM
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Quote:
Originally Posted by LFD132 View Post
I know the KEM tunes cycle the egr on start up. Not sure about the H&s tunes.
Are you sure about that?
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Old 04-28-2011, 11:35 AM
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Quote:
Originally Posted by drservo View Post
Are you sure about that?
I just Emailed Mike at KEM and asked him about this.
I just loaded a custom KEM tune to my truck last week and am curios about this. I will post up when he responds to me.
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Old 04-28-2011, 03:27 PM
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I emailed Casey at H&S and he says the 6.4 will cycle on start up as well.
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