Riddle me this..

hondarider552

hondarider552

Getting faster
May 28, 2008
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Got the lockup box issues all figured out... my fault, I didnt grab power from the BCM... thought the BCM was somewhere else from where I actually hooked the power to :rolleyes::rofl: :eek:


Lockup box works flawlessly.... but... Truck still hangs at 3600 rpm+, lockup box had zero effect to my problem. James and I logged the trans to see what was going on. We tried both auto and force lockup with no change..

At a standstill as of currently.. I am running a 2000Us tune on 20% overs.. maybe 500rwhp.




figuring out how to zip the logs... :confused:
 
hondarider552

hondarider552

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I can feel the converter lock on WOT in auto mode, but it seems like with or without Ben's box, it still hangs the shift.
 
hondarider552

hondarider552

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The only issue that I can see in the log is the current gear vs commanded gear...

Current gear will say 3rd, commanded says 4th while the truck is hanging the shift. To me it seems like the trans is a gear behind what the TCM is asking... but just a thought. May be way off on that one, just what James and I saw... :(
 
D

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
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Can you show a log of the pcm.? I would like to see mph and RPM and Throttle poss and fuel rate is possible.
 
hondarider552

hondarider552

Getting faster
May 28, 2008
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this work? Dotted line is where the shift hangs. For some reason the log wants to show the PID's that I just used for the trans? Never used to show them..
 
Last edited:
Chevy1925

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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Dan@PPE said:
Can you show a log of the pcm.? I would like to see mph and RPM and Throttle poss and fuel rate is possible.
Click to expand...

i tired to log RPM at the same time but you cant. id have to do a back to back run and switch from monitoring TCM to ECM.

hondarider552 said:
this work? Dotted line is where the shift hangs. For some reason the log wants to show the PID's that I just used for the trans? Never used to show them..
Click to expand...

I changed them so we could see how everything looked on the graph. The pids in the graph were not selected so their data line did not show up.



this truely is weird driving in this truck. I find it odd that in auto mode on bens lock up, lock up wont come till the top of 2nd some times or the top of 3rd from a stop. And it hangs shifts. then if i force lock half way through second as brians does another dig run, you feel the converter hit, then it still hangs right at 3600. Unfortunatly i have no log of me doing that as we were pushing alot of different buttons and shit last night and we didnt have the computer out yet.

what ever the case may be, bens box works like its suppose to and only eliminated another possiblity.
 
Chevy1925

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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Mike L. said:
You have a control problem. I don't see a hanging shift being caused internaly. Call me anyways.
Click to expand...

i told him the same last night.



brian, we need to try swapping TCMs and such with my truck and see what happens. come back over friday and lets see what we can find. i gotta do a compression test and drop my fuel tank then too.
 
SSchmi5519

SSchmi5519

LLY Cult Leader
Oct 19, 2008
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Chevy1925 said:
i told him the same last night.



brian, we need to try swapping TCMs and such with my truck and see what happens. come back over friday and lets see what we can find. i gotta do a compression test and drop my fuel tank then too.
Click to expand...

I dont know if we can swap those straight across
 
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