Factory reflashes, hesitation, stalling, and everything you need to know [merge]
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Joined: Jan 2008
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From: Canada
Oh and to DRAG, the comment about the car probably just making more power that day and that all cars can fluctuate from day to day based on the ambient temperature, I think you are a bit off base on this. All cars will fluctuate a bit based on temp, but not THAT much. You would have to do the first run in 120 degree weather and then go back when it's 20 degrees to see a gain like that. Usually, the most that a car will fluctuate with ambient temp (as long as the temps are somewhat similar and not extreme opposites) is 7-10 at the most.
I would want to see more before/after dynos of this reflash before I started to jump up and down.
Just got the X back after reflash.
Car runs obviously better
Idle at 750rpm
Holds boost to rev limit vs dropping out after 5500 rpm
Definite improvment.
No sputtering/hesitation so far.
Car runs obviously better
Idle at 750rpm
Holds boost to rev limit vs dropping out after 5500 rpm
Definite improvment.
No sputtering/hesitation so far.
Just got the X back after reflash.
Car runs obviously better
Idle at 750rpm
Holds boost to rev limit vs dropping out after 5500 rpm
Definite improvment.
No sputtering/hesitation so far.
Car runs obviously better
Idle at 750rpm
Holds boost to rev limit vs dropping out after 5500 rpm
Definite improvment.
No sputtering/hesitation so far.
So the cars with VINs above the cut off already have this firmware from the factory and don't have any of the problems reported by the other owners (unstable idling or high rpm hesitation)? Can anyone confirm?
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From: Indianapolis, IN
Those 2 dyno charts are from different days, probably different outside temps, and probably not identical heat in the engine. It is completely irrelevant...though I HOPE it is correct
Thread Starter
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Dang everyone is getting their hesitation fixed but me 
I'm going to go beat on it a bit here and see what happens. I guess I'll be taking it back to the dealer again.
I'm going to go beat on it a bit here and see what happens. I guess I'll be taking it back to the dealer again.
Thanks
Evolved Member
Joined: Mar 2008
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From: Mid-West IL
I went by the dealer and I am too still call them Wednesday or Thursday. They apprantly tried to flash an EVO X and they said they failed. They said an engineer is coming tomorrow. Will see, I hope I don't get stuck with just a rev fix like DRAG.
That all sounds promising and great. I hope I am on this boat by next week
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Joined: Mar 2008
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From: Mid-West IL
I didn't judge it by the power increase. I say there is definitely a power gain by looking at the different behavior of the power band. If you showed me those two dynos I would think they are two different cars, not temp simply affected. I couldn't care less about hte 15hp, I just want it to run properly like a turbo car should past 5k rpm.
Last edited by love9sick; Apr 14, 2008 at 03:27 PM.
