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Atr to EcuFlash - MR Shifts Jerky now..

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Old May 7, 2010 | 08:27 AM
  #1  
saytheb's Avatar
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From: Colorado
Atr to EcuFlash - MR Shifts Jerky now..

Hi all..

I made the switch between ATR/AP to EcuFlash/EvoScan. I moved my ATR maps into ECUFlash the best I could, and aside from a really bad startup at first, it seems to be alright.

The only issue I have now is that shifts under boost now in my MR are VERY jerky, almost like a a manual. It feels like full boost is being recirced and I get a massive wave of compressor surge. I have not change anything under the hood.. just the map.

If I cruise around, the shifts are like butter. The only issue comes when I am under slight/moderate boost, the car will shift, buck HARD, then continue on merrily.

Any ideas?

Edit: This was a map I created in Access Tuner Race (Cobb) for E85 and supporting mods, as well as an FPRed + 3-Port. The map worked flawlessly on my SST.. now that I've copied the tables to ECUFlash, the SSTs shifts are clunky and boost is being vented during shifts.. ugh..Help?

Last edited by saytheb; May 7, 2010 at 09:44 AM.
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Old May 7, 2010 | 08:34 AM
  #2  
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From: Seaside Hgts/Jackson, NJ
Originally Posted by saytheb
there were a few "missing" tables
I think you may have answered your question right there. I'm not much of a tuner but I do know all the maps pretty much affect each other, and I'm sure that anyone would be much more able to help you if you knew which tables were "missing"
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Old May 7, 2010 | 09:41 AM
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From: Colorado
When I say missing, I more mean SST specific throttle/torque tables, and really I guess that's the only thing.. For the most part, ECUFlash has MORE tables.
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Old May 7, 2010 | 04:04 PM
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From: Hayward
I'm willing to bet you didn't move over the Lower Bound timing table that the MR uses between shifts?

- Bryan
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