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Originally Posted by SlvrBrute
Well just installed the gryphon programmer today with the 89 performance tune to help compensate for my Banks Monster Exhaust and drop-in AEM dryflow filter and it is doing the same thing as the edge on level 2 was doing?? It will cut out if you softly accelerate to around 25-40 mph range and that is where it doesn't like something because if you accelerate mildly to hard there is no cutout or hesitation in that range but if you let off in that range and then try to get back on the gas it will hesitate and cut out as it tries to regain speed...seems to be the range that most of the problem occurs and it also seemed like at 60 mph if you would let off and try to get back on the gas it seems like it isn't as responsive as I am thinking it should be or hoped the gryphon would fix...So I really can't tell that the gryphon has done much because the problem is still there that occurred with the edge and the truck just doesn't seem to run very smooth with a tune or isn't liking something...But the truck runs fine in stock mode with the exhaust and drop-in filter except for the hesitation and sluggishness that is usually common with the trucks....I have contacted Bill at PHP and he was going to look into it so I don't know what the deal is but I am getting frustrated with trying to get the truck to run how it should with my add-ons which are nothing major!! Plus my gas mileage has seem to gone down and I don't know what is going on???
The truck almost has 10,000 miles on it and needs an oil change in about 500 miles but do you guys think I should change my fuel filter? I am also thinking of running some fuel system cleaner in the next tank along with running a more premium fuel like a 92 or 93 to see if that will help kind of clean it out if there is a little bit of crap in the system?? I live in Iowa and the only reason I am thinking about changing the fuel filter is because we have been pretty cold for several months and there have been like 2-3 day spurts throughout the last few months where it has been below zero and the truck started a little hard on a few of those days because it had been sitting outside for a little while because I am in college and don't usually drive much except to go to the store or get something to eat every now and then? Anything else that I should have looked at or that might need changed? Just wondering if anyone has some input because I am not sure what I should do...
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Well, the biggest reason your gas mileage has gone down is because of the colder weather you have had. This is the norm where I live in Canada.
Also, what year is your truck?
If you try hard enough, can you get it to do the same when it's in stock?
I don't think the fuel filter is the issue.....or you would have the same problem while on stock tune.
When you say it will "cut-out" when you softly accelerate.......can you describe very specifically what it does. Does it happen the instant you apply more pressure to the accelerator, and then take off after that? Does it feel like it's missing...... or actually dying for a couple seconds?
I recommend driving your truck in stock for now until your hear from Bill. Just be patient! He deals with lots of issues similar to yours on a daily basis.
Sorry we can't help you more, just yet!