Diane (and I will ask jody in the morning too) or anyone else, I mentioned it in my first post but is there anything in the programing that would be affected by running the biodiesel that I run? I don't see how but then I am trying to eliminate all possible issues too.

 

Diane, this is the reason why people like me go to you guys, you were sick and you called me to help me out, so no meter what im devoted to you guys, and im sure Rob would end up happy like little baby, after hes issue gets straighten out,

 

That's a very good question. Our hopes are to be able to, once we get settled down in GA, is to hook the engine analysis equipment back up to Jody's truck and monitor the burn rate of the fuel with Bio and his different tunes to see how it is effected if any with BIO. Gotta get the time.

FWIW- My .02 is I would think there would not be any effects, but I am just the student.

One thing I would check also if you have been running bio is the fuel filter to make sure it is not in need of changing.

 

Ok little bit if an update here, I should be sleeping but this was bugging me so went back out. pulled the chip, recleaned the contacts while I had it out, then reinstalled the predator 60hp tune and made a run, took a different route so no bias, anyway I did a rolling start to 65mph and picked a the spot where it hit 65, then turned around dead stop on a hiway onramp, picked a spot and with the predator hit 70mph, ok back home reflashed to stock, went in fine, reinstalled the chip same route, the rolling to 65 I couldn't see any difference at the point it hit 65mph (I know this isn't very scientific best I can do without a dyno) ok to the onramp standing start hit 72, ok now were doing a little better, egt's stayed about teh same between the 2 programs basically hit 1000 both times, ok turned around set to 120 (oh you know my curiosity was killing me) rolling start once again hit 65 at the same exact place, standing start it 75mph, egt hit 1100 in that time, kept my foot in it for approx 1/4mile egt hit 1225 I can live with that. So this seems to be a little better, don't know if cleaning or reflashing was the issue but it did improve it slightly. I tried smoke tune, and it really didn't smoke much at all, actually maybe a little bit more than 120 but not much. I didn't try the 140 on my little route.
Pete I also did the test of holding throttle position starting at 40, increased a little to 60, then again a slight increase when I hit the 80 (talking speed, I could also slightly feel a difference) when I went to 120 speed stayed flat, 140 increased one mile per hour. Don't know if that tells you anything except it does show that they are changing settings I guess.

Oh and Diane, the fuel filter is something I do keep up on because I do run bio, but that is a good suggestion anyway. I am just used to it, although my bio is been good enough I have never really had any problems except the first couple of tanks when I switched.

 

I will add a new post cause last time I edited someone posted stuff. I forgot about boost though, predator in the standing start run, hit 29psi, dp 80hp hit 24, 120 hp hit 28 so boost is a lot lower with this chip vs the predator.

 

Something is definitely wrong. With your (fairly) limited mods you should be burying the pyro needle in the smoke setting....and it should smoke.

With your fuel system it's hard to imagine it being a lack of fuel, bet that sure is what it sounds like (low boost/no smoke). It may very well be the bio, if I run anything over B5 I can feel the difference. It's not much of a difference, but it's there.

 

id say somthing is wrong, i had a lot of jerk between 80 and 120, like you would hit the pedal for a split second , so it might be a chip?, now just guesing, it would be nice to have somone with the same chip close to you just to double check it,
i cannot help you with mine cause with stage3 inj, it would not run,
im sure Jody will help you out tommorrow, let us know whats up,

 

curious....

What is your fuel pressure at idle and then what is it at WOP?

Diane


I need to get to bed too...hehe

..but I can't.

 

Diane I don't have a fuel preasure gauge on this truck.

 

Hey man have you had any luck getting this fixed yet?

 

I tried to call Jody yesterday but got the answering machine, left a message but figured he probably was just pretty busy trying to get caught up so no biggie will call on monday.
But no haven't gotten it figured out yet, I am thinking will probably end up sending it back and letting him check the chip out. I am going to do a couple things today just to get them out of the way, like replace my fuel filter (even though it only has 1500 miles on it) and want to get down to a friends shop and use his fuel preasure gauge so I can check what my preasures are doing at WOT just in case, but I don't really expect those to be the issue because in the same day with the same fuel etc the predator is giving me more boost and less smoke all the way around, plus with petes test of steady throttle, there is virtually no change from 80 to120 but I do get a jump from 120 to 140 like he was describing I should be getting from 80 to 120.
Also will take the PCM back out and clean the terminals one more time lightly but I already can see just a little copper showing on all the terminal but hey it's worth making sure thats not the problem before sending it to Jody and taking up his valuable time. just want to eliminate any variable that might be on my end (reason for the post to begin with)
So if anyone can think of anything else I should make sure of before I call on monday please let me know and I will try it.

 

thats what you should see, Copper, cause this is what few guys didnt doo, and had problems, thats what i did on mine and havent had any problems, i do electronics for living, and those electic gremlins can drive you up the wall,
get you wifes nail polish cleaner that will clean it very well, or contact cleaner and use papertowel, after you clean it you should have just a spot from the cleaner and no black residue,

keep us posted on this Rob,

im geting to the point that it might be a little miss in tuning, more think about it, see last post by Ernestugine, he blew his filterminder cause little miss in tuns
but just like you id like to eliminate human error,

 

One thing i can't see is b50 giving you high egts. Maybe someone else can chime in and tell me why or why not this is a correct thought. B-50 has less BTU's of power compared to straight diesel. So assuming that wouldnt the egts be less with the b-50?

 

John that would be correct B50 shouldn't give high egt's, and the fact that with the same fuel just running a different programing (switch from predator to dp, back to predator and back to dp) should eliminate that as a possibility. I did notice yesterday when I drove it that on 120 setting it would jump instantly to around 1200-1225 then drop back to about 1175 as I kept my foot in it and pretty much stay there so that instant jump to 1200 the first time I did it was just scaring me but it stabilizes as the rpms increase. the 140hp smoke tune well you do want to keep an eye on that one as it will hit 1300 pretty quick if you leave your foot in it long at all.

Haven't gotten a chance to touch the truck much today in the middle of finishing one batch and starting another batch of bio but i will get on it yet this weekend. That and I should be going out to the farm and working on the ranger, race season starts next weekend and I ain't ready. lol

 

Please forgive me if I've if I've mislead anyone on my post about DP sucking! That was my attempt at a joke. That's why I started the second paragraph with "On a more serious note"! I broke the restrictor gauge by bumping into it while showing Jody my new CCV mod using RV sewer hose!

This however is not a joke, Jody was very accommodating to my needs even though he was all backed up from Smokin. He worked after hours over several days trying to come up with my desire for special control over my auto tranny, and in the process he ping ponged several chips in and out of my truck so I could keep playing with the latest version. Well, when we ponged in the latest (and for now the last) version Friday evening on a new chip we had a problem. He did some trouble shooting, but finally just pulled that chip and put the latest special programs on the chip I'd been testing and everything worked fine. He wasn't sure if it was a bad chip or he'd miss-programed it or what. I happened to flag a problem before I left his driveway because the fast idle didn't work. Also on the good set up I'd been driving I'd noticed that as I cycled through my settings at idle, the stock setting gave a noticeably slower idle than all of his tunes which were slightly higher but all exactly the same rpm. On the problem set up one of his tunes gave a slower idle which he said wasn't right.