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Author Topic: Timing drops between shifts  (Read 314 times)

random-strike

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Timing drops between shifts
« on: August 07, 2017, 11:05:37 PM »

Is this normal?
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random-strike

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Re: Timing drops between shifts
« Reply #1 on: August 08, 2017, 03:49:38 PM »

talked to a buddy and said its normal especially via drive by wire. its lame tho it makes the engine hesitation between shifts if you dont' slip the clutch a bunch
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Ntrain2k

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Re: Timing drops between shifts
« Reply #2 on: August 09, 2017, 04:55:44 PM »

talked to a buddy and said its normal especially via drive by wire. its lame tho it makes the engine hesitation between shifts if you dont' slip the clutch a bunch

Torque management to save the transmission.....
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random-strike

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Re: Timing drops between shifts
« Reply #3 on: August 09, 2017, 06:46:05 PM »

talked to a buddy and said its normal especially via drive by wire. its lame tho it makes the engine hesitation between shifts if you dont' slip the clutch a bunch

Torque management to save the transmission.....

Yah so lame. When I get it tuned I'm going to remove it lol
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Ntrain2k

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Re: Timing drops between shifts
« Reply #4 on: August 10, 2017, 02:58:43 AM »

talked to a buddy and said its normal especially via drive by wire. its lame tho it makes the engine hesitation between shifts if you dont' slip the clutch a bunch

Torque management to save the transmission.....

Yah so lame. When I get it tuned I'm going to remove it lol

I think it's cut by 75% on the 5.3/4L60 in the ascender. Huge difference.
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random-strike

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Re: Timing drops between shifts
« Reply #5 on: August 10, 2017, 01:18:12 PM »

on my cobalt it goes from 27ish or whatever to 6 between shifts.
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Ntrain2k

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Re: Timing drops between shifts
« Reply #6 on: August 10, 2017, 03:16:05 PM »

Yep, that's tq management for ya.
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random-strike

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Re: Timing drops between shifts
« Reply #7 on: August 28, 2017, 10:30:37 AM »

i think its giving me a studder. i can't figure out why its doing it. but it does it between shifts especially when its hot
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Ntrain2k

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Re: Timing drops between shifts
« Reply #8 on: August 29, 2017, 03:25:41 AM »

Throw a live scanner on it and see whats going on.
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random-strike

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Re: Timing drops between shifts
« Reply #9 on: August 29, 2017, 09:27:37 AM »

I have torque but there is only so much I can see.

I see that the timing flies around. It only has narrow band o2 but they seem to work. It bounces around between .1-.8v which seems rich but I dunno
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Ntrain2k

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Re: Timing drops between shifts
« Reply #10 on: August 29, 2017, 04:33:34 PM »

I have torque but there is only so much I can see.

I see that the timing flies around. It only has narrow band o2 but they seem to work. It bounces around between .1-.8v which seems rich but I dunno

Need to get someone like JD to finger it....
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random-strike

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Re: Timing drops between shifts
« Reply #11 on: August 29, 2017, 10:42:48 PM »

I got it figured out by watching the stft and ltft with torque app.

New air filter did the trick. The other one was really shitty and old. But these things are a pita you have to take wheel and inner fender off to get to air filter lol....
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Ntrain2k

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Re: Timing drops between shifts
« Reply #12 on: August 30, 2017, 02:32:20 AM »

Fuck that shit. I'd figure out another setup for it.
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random-strike

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Re: Timing drops between shifts
« Reply #13 on: September 01, 2017, 10:57:50 AM »

i wonder if there is a way to stop the ecm from messing with the timing at idle

it bounces from normal to low to normal to low all the time and you can feel it in the engine
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