Easy, if you have a high stall converter, take a scanner, and watch the
timing advance closely. Lock your parking brake, and hold the regular
brake firmly, place shifter in drive, and slowly stall the truck up to
approx 2000RPMs and watch the timing from 2000RPMs up, if you see your
timing drop to 0 from lets say 30% throttle, to 100% throttle, then
guess what, ya got it :)
It only affected me once I was making some good numbers (~300RWHP) so,
if you're dealing with a stock, or near stock motor, it may not have the
"umph" to stall the converter as high as mine did. (I used the Mopar
Performance 2400 stall in the 44RE) and it would stall as high as
2700...
How does one "find" that they have TQ management?
----Timing to zero???? The only person I've seen attempt to document
this
converter phenom with a DRBIII was Travis Mock and he was talking
something
on the order of 4 degrees retard. What you are suggesting is along the
lines
of 30+ degrees. BTW, Travis ran some 12.3ish ETs in the heat of Phoenix
with
a '99 controller that supposedly had this "TQ management problem" and he
had
respectable 60's too. Again, I think the issue is overblown.
Nope, it would drop my timing from the mid to high 20 degree range,
straight to 0. Several people at the dealership were very stumped on
this. As well as my friend who worked at the dealership called Chrysler
to ask what the hell was going on, and they recommended a new PCM.
Well.... the new PCM had it too...
----The idea that some trucks have it and some don't just feeds the
rumor mill.
It is HIGHLY unlikely that you would see such a major PCM subroutine
flashed
into some 360 trucks, but not others, especially if you're talking about
a
given model year. Less timing or the "death flash" everyone points to,
OK.
But major program mods like that are not likely.
If you've got a FSM for your truck, look up the connectors on the PCM
and
see if there is a torque management wire in the harness. Then verify if
that
wire is physically there on your truck. That would be a start. My '01
does
have the signal wire, but I don't know that all Gen IIIs did. But even
with
the wire, that's no assurance that the feature is programmed or enabled
in a
given controller.
Nope, no wire, I can tell you what it reads on my 97. On the 96 and 97
dakotas, we have an "Output Shaft Speed Sensor" which measured the
rotational speed of the output shaft at the rear of the tranny. I found
once disconnecting this sensor, if you have torque management, for each
INITIAL startup, you can feel the torque management by taking off
rapidly... (just stomp it) you will receive 0 degrees of timing advance
until the PCM realizes that the sensor has failed for that driving
cycle. Once the computer realizes this, you no longer will have torque
management, until you turn the truck off.
The actual line of code that the torque management is in on my truck is
in the "ABS" section. That is all I know about where in my 97 PCM it is
located.
You can believe what you want about the torque management, but I can
tell you, I researched this torque management about 2-3 years ago,
calling everyone possible, taking notes, etc.
Just consider yourself lucky if you don't have it. It was so fustrating
when I had no idea what was going on, I was considering buying a
Lightning or Mustang. Now, I can say my truck will run 11's with no
problems (other than traction)
Again, hope this helps the list out some.
Tim Berry - 97 Dakota CC SLT
Nothing Stock is left :-)
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:47:09 EST