6.0 Lunges when holding constant speed - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 14 (permalink) Old 09-08-2014, 12:17 AM Thread Starter
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Angry 6.0 Lunges when holding constant speed

Hey all needing a little help. Long time lurker and first time poster lol!!! I have an egr delete, 5" turbo back exhaust, coolant filtration kit, blue spring upgrade, custom tunes from MPT tuning (running bazooka when this happens). I can be running a constant speed and my truck will start lunging like im hitting the fuel and letting off real quick, when in reality my foot never moves. I have tried other tunes and it does not do this but sometimes when im stopped at a light i have to keep pressing the brake pedal harder to get it to stay put. any input would be great. TY and by the way i have called mpt and they have redone my tunes 2times and it still does it.

Last edited by dont; 09-08-2014 at 12:19 AM. Reason: left something out
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post #2 of 14 (permalink) Old 09-08-2014, 12:19 AM Thread Starter
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Re: 6.0 Lunges when holding constant speed

Correction:::: the other tunes do it but not as bad as the bazooka and is there any tunes out there that won't rocket at 1/2 throttle. i would like one that has balls all through the rpm range. not normal to 1/2 throttle then slams the fuel in.
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post #3 of 14 (permalink) Old 09-08-2014, 12:27 AM
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Re: 6.0 Lunges when holding constant speed

Possible injector sticktion

2004 6.0 ccsb Warren 430/150 hybrids, Warren Comp Trans, Warren Dual Hpop, Billet S475 w/race cover, Marty's A1000 Fuel System, Colt Stage 2, and all the other supporting stuff
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post #4 of 14 (permalink) Old 09-08-2014, 12:44 AM Thread Starter
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Re: 6.0 Lunges when holding constant speed

I have ran revx in the last 2 oil changes and before that was arch oil. those helped with my cold starts but this has been goin on since i had the tunes. it didn't do it when i had a diablo predator on race tune.
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post #5 of 14 (permalink) Old 09-08-2014, 12:46 AM
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Re: 6.0 Lunges when holding constant speed

ICP sensor can also do that.
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post #6 of 14 (permalink) Old 09-08-2014, 12:48 AM Thread Starter
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Re: 6.0 Lunges when holding constant speed

what does the ICP sensor do?
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post #7 of 14 (permalink) Old 09-08-2014, 12:59 AM
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Re: 6.0 Lunges when holding constant speed

Measures the oil pressure in the rails

2004 6.0 ccsb Warren 430/150 hybrids, Warren Comp Trans, Warren Dual Hpop, Billet S475 w/race cover, Marty's A1000 Fuel System, Colt Stage 2, and all the other supporting stuff
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post #8 of 14 (permalink) Old 09-08-2014, 03:34 AM Thread Starter
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Re: 6.0 Lunges when holding constant speed

Is there any way to check this ICP sensor to see if that's the problem? I see it cost around 135.00
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post #9 of 14 (permalink) Old 09-08-2014, 03:38 AM
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Re: 6.0 Lunges when holding constant speed

Have to have a scan tool to look at it, you can try to unplug it and see if it runs better. The PCM will go off of an inferred table instead of actual readings.

2004 6.0 ccsb Warren 430/150 hybrids, Warren Comp Trans, Warren Dual Hpop, Billet S475 w/race cover, Marty's A1000 Fuel System, Colt Stage 2, and all the other supporting stuff
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post #10 of 14 (permalink) Old 09-08-2014, 05:24 AM Thread Starter
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Re: 6.0 Lunges when holding constant speed

i will check when i get off work. thanks for the input. how do i check it with a scan tool? i know that probably sounds stupid.
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