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Power Strokes
6.0 Tech
Black smoke and surging at idle!
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[QUOTE="itsmerandy, post: 1553016, member: 33660"] Truck is a 2004 f250 6.0 powerstroke. Purchased and installed KCTurbo stage 2 Kit with WDI 190/30 premium injectors. Also installed ODawg s3r intake manifold with no EGR valve, Driven diesel fuel return with fuel bowl ******, Air dog fuel pump and No Limit cold air intake. Was supplied custom tunes with SCT x4 from Chris TSD tunes. Everything ran great for 200+ miles then one day was driving down the road when black smoke started pouring out exhaust and engine was chugging and wouldn't idle, I pulled over and engine would go between 900 - 2,000 rpm back and forth with black smoke pouring out. So I shut it off and tried restarting twice and it would start right up and do the same thing. I had it towed home and then tried to start it at home and it started right up normally with no surging, so I took it for a quick spin around the block and all was good until i got back to my house and it started the same problem again. So I thought it was probably a bad or plugged up ipr valve and replaced it but still had same problem. I decided to try and go back to stock with my tunes and it started running normal again. So for some reason now I can't run any of the custom tunes only stock. I just can't figure out why it ran great with custom tunes for over 200 miles and now it won't. Another thing I noticed is in stock tune my ICP won't get higher then 1700-1800 psi and with IPR at 80%, I thought this was strange but has plenty of power. I did new head gaskets and ARP 2000 studs with new dummy plugs and stand pipes so I don't think i have any high pressure oil leaks internally. I would greatly appreciate anybody's thoughts or idea's as to what is going on with my truck. Thanks! [/QUOTE]
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Black smoke and surging at idle!
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