Torque management rears it's ugly head again....twice. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-19-2004, 07:55 PM   #1
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Default Torque management rears it'* ugly head again....twice.

Both DHP and INTENSE PCM'*. I hit TM in 2000SilverBullet between 105 and 110 mph (DHP PCM). PontiacDad verified it, and 2000SilverBullet also hit it in Pdad/Pmom'* 2000 with the INTENSE PCM.

Scott, is this a known thing, or something you're working on? It stumbles and dumps boost if you're running WOT at that point.
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Old 07-20-2004, 12:31 AM   #2
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You should have swapped pcms, im betting the 105-110 thing is a dhp problem in the pcm. More stuff is being found all the time with pcms for bonnies, gtps, regals, montes etc...what did the TM feel like in Pdads car?
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Old 07-20-2004, 12:35 AM   #3
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Also wondering if the higher shift points are making the car fall on it'* face at 6K rpms with out rockers or cam, falling out of the power band

I don't do much +100 mph driving but I did the other day and didn't notice any 110 slowdown or anything, just keep pulling.
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Old 07-20-2004, 02:01 AM   #4
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BOTH cars had exactly the same TM effects. And both at the same speed. One PCM is DHP, the other is INTENSE.
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Old 07-20-2004, 05:02 AM   #5
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Please email an Autotap log so we can help analyze the problem. It may not be your PCM at all...

[email protected]

Scott
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Old 07-20-2004, 10:31 AM   #6
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Scott, both of those cars are enroute to BC,

They'll see this when they get there. Thanks for popping in here!
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Old 07-22-2004, 05:03 PM   #7
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Quote:
Originally Posted by BadSSEi
Please email an Autotap log so we can help analyze the problem. It may not be your PCM at all...

[email protected]

Scott
I will try and get some logs for you, I have pulled beyond the 110 in the past and thought heat maybe playing havoc with us. Many pulls that night with various driving styles.
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Old 07-25-2004, 04:11 AM   #8
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During the races I had bypassed my Boost control solenoid, so the computer could not dump boost. It worked and I kept pulling strong up past 110 mph after the end of the 1/4 mi.

After the race I reconnected the wheel speed sensors and the boost control solenoid. That'* when we took turns doing 0-110 mph runs up our private roadway.

I also hit it once on the highway at about 120 mph.

I have now bypassed the boost solenoid again and will take it for another run soon.

Victor noticed the boost gauge pulsating from +9 psi boost to 0 when the limiter hit at around 5300 rpm in 2nd. It pulls nice and strong in 1st gear to 6,000 rpm in both cars.
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Old 07-25-2004, 01:01 PM   #9
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That'* exactly what I experienced in the Bullet. She dumped boost at 105 mph, and stumbled. Pulled hard all the way up to that point. Even when I was drifting sideways in the gravel.
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