Help: Shuts off in seconds under hard use

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
WTF is wrong with this tune that causes it to shut off on anny dsp position than 0. List of mods incl fass 150 150 mpi twins w GT45 over stock on an 01 lb7 in a 72 blazer. hmm cant send log file so hers the tune
 
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Smokin LB7

New member
Jul 25, 2008
191
0
0
On a side note...Do you have any videos of that thing running, driving, going fast, wheelin, anything?
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,712
773
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Texas!!!
I'm gonna guess maybe an overboost problem.

edit: you really need to post a log. If you zip it, you can attach the zipped file.
 
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Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
cool thnks for telling me to zip it . here she is
Thats dam funny I posted the wrong tune anyways
 

Attachments

  • lost.zip
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Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
You didnt see it?
Look at where I lifted off the throttle and before that it shut everything off.
On anny tune other than dsp off it run at any hard throttle for about 10 seconds or so and completly shut off like you seee in the log file it turns off desired rail pressure, pulse width timing and all then youl see me lift off the loud pedal
 
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Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
HMM This is an LB7 with an LLY trans tcm attatched to it set to shift at 3800 by suncoast as well as its a 6 speed upgrade. Im wondering if the tcm is requesting it shut down for everspeed or some shit, i should log the tcm too? Im gonna tomorrow
 

paint94979

Beer Nazi
Sep 18, 2006
11,715
8
38
37
HMM This is an LB7 with an LLY trans tcm attatched to it set to shift at 3800 by suncoast as well as its a 6 speed upgrade. Im wondering if the tcm is requesting it shut down for everspeed or some shit, i should log the tcm too? Im gonna tomorrow

who's tune is it?
 

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
It was sent as 4 scrripts with the turbo I traded my new gt 4708 and 4088r for an mpi kit with a gt 45 and the 4 tunes for this lb7. I lost the truck in my sig to this econemy and didnt have the funds to build a motor to take the other setup. So I really dont know who orgionaly tuned it. and yes thats what im saying it completly cuts off then creeps back in after like 10 to 15 seconds it does this any time i get to hard on the loud pedal
 

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
Log fiile is there allready look in post #9

ok Its NOT s shiftt defuel it cuts out at the end there next u see me lift. All I did was logg from a rolling start getting on the fwy onramp then lifted pulled over and saved it. trust me itts not a sshift itt will do this at ANY speed
Its like its starved for fueel and maybee it is.
 
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TrentNell

Finally underway !!!!!
Jul 7, 2008
7,543
0
0
44
slc tuah
Your local to me I think arent you in Utah ? I could give you a hand , I usually dont charge too much, but do expect some compensation for my time and dont mind helping out .
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,712
773
113
Texas!!!
Ok, I see it now. I was looking in the middle of the log where you have the defuel on the shift. That almost certainly is an overboost defuel. I would bet money on it.