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Car falls on its face shifting gears

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Old Jul 14, 2013 | 06:05 PM
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Car falls on its face shifting gears

Im having this issue where the car falls on its face when shifting gears. It will like studder and fall out of boost and feels like it has no power

Im thinking its an ignition issue. Im using a spoolin up cop ignition and it has brand newe plugs in it. Any ideas on what to check?
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Old Jul 15, 2013 | 01:13 PM
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From: south jerz
did you do a boost leak test? check your plug gap too
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Old Jul 15, 2013 | 01:45 PM
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Plugs are gapped correctly and i just did a boost leak test a few weeks ago. All is good in those departments

The car will make clean pulls, no break up or anything, but its when i shift to the next gear and get back on the gas it hesitates and just falls out of boost. It will only do it when i shift up to the next gear, no other times it seems
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Old Jul 15, 2013 | 02:57 PM
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did you recently get a tune? sounds like maybe no lift to shift is activated. does it happen even just cruising around shifting up?
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Old Jul 15, 2013 | 03:29 PM
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No, it only happens when im driving it hard. Just crusing around, theres no issues at all

I dont see how it could be no lift to shift being activated because i let of the throttle when i shift completely
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Old Jul 15, 2013 | 03:47 PM
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The stock ignition system should be good till at least 600 whp. Unless you know for a fact that the system is faulty I would probably keep looking into the problem. If you don't have a way to test it then I would use a friends stock coils to double check.
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Old Jul 15, 2013 | 04:10 PM
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I dont see how the ignition system would be bad if it pulls through the gears no problem, its just when i shift to the next gear it happens. Im stumped on this, thats why i posted on heree
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Old Jul 15, 2013 | 05:00 PM
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Originally Posted by mrevo331
No, it only happens when im driving it hard. Just crusing around, theres no issues at all

I dont see how it could be no lift to shift being activated because i let of the throttle when i shift completely

NLTS activates only when you are driving the car harder (some set value). If you lift the throttle when NLTS is activates in your ECU, the car will fall on its face.

Lifting throttle with NLTS activated in your tune will be an issue. you cannot shift normal with it, once you pass the threshold that activates it.
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Old Jul 15, 2013 | 05:06 PM
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Op,when you lift to shift car bucks for split second right?
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Old Jul 15, 2013 | 05:10 PM
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Originally Posted by AreSTG
NLTS activates only when you are driving the car harder (some set value). If you lift the throttle when NLTS is activates in your ECU, the car will fall on its face.

Lifting throttle with NLTS activated in your tune will be an issue. you cannot shift normal with it, once you pass the threshold that activates it.
Just checked my ecu and NLTS was activated. I turned it off so ill see if that fixes it

Edit:
I just looked at the perameters on the NTLS settings and i dont see how it could of been activating. Heres what they were set at

Tps threshold: must exceed 98%
Load threshold: must be UNDER 150
Speed threshold: must be UNDER 19mph

Last edited by mrevo331; Jul 15, 2013 at 05:14 PM.
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Old Jul 15, 2013 | 05:19 PM
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Originally Posted by egis
Op,when you lift to shift car bucks for split second right?
Yes, but it doesnt pick right back up, i usually let out when it happens, so im not sure what it does if i stay in it
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Old Jul 15, 2013 | 05:58 PM
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Originally Posted by mrevo331
Just checked my ecu and NLTS was activated. I turned it off so ill see if that fixes it

Edit:
I just looked at the perameters on the NTLS settings and i dont see how it could of been activating. Heres what they were set at

Tps threshold: must exceed 98%
Load threshold: must be UNDER 150
Speed threshold: must be UNDER 19mph
Those tables are labeled wrong they are supposed to be OVER not under.
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Old Jul 15, 2013 | 06:05 PM
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Originally Posted by 90zcrex
Those tables are labeled wrong they are supposed to be OVER not under.
Ahh, well if thats true then i can see how that would be causing this issue
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Old Jul 16, 2013 | 04:59 PM
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From: south jerz
sounds like an issue i had with my vw back in the day when i put an atmospherical bov on it. though i dont have this problem with my evo, but my vw wasnt tuned and the evo is
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