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Curing overboost with ECUFlash

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Old Sep 6, 2009 | 02:48 PM
  #16  
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kaj
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i wouldn't mind seeing the FQ roms. that would be interesting and, perhaps, work well on my car.
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Old Sep 7, 2009 | 10:27 AM
  #17  
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Originally Posted by kaj
i wouldn't mind seeing the FQ roms. that would be interesting and, perhaps, work well on my car.
I'm on a different laptop at the moment, but you can get them from here:

http://www.geekmapped.com/forums/
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Old Sep 8, 2009 | 11:13 AM
  #18  
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Originally Posted by wip
Defo not a stock rom.

I can send you the stock roms to compare if you like (FQ340 & FQ360)

Timing looks close-ish to a stock FQ340 though.

Curious why you've disabled the rear O2?
Hi mate - please link me for your stock from however from what I've seen of the 88570008 rom they appear to be the same :S

I've disabled the rear O2 since I dont have one. (HKS Downpipe, Sports Cat & Custom Exaust).
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Old Sep 8, 2009 | 11:52 AM
  #19  
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Originally Posted by kaj
i wouldn't mind seeing the FQ roms. that would be interesting and, perhaps, work well on my car.
It wont work well on your car.
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Old Sep 19, 2009 | 07:02 AM
  #20  
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Right - I've fitted a manual boost controller, set it by eye to 1.2bar went out for a quick blip and had it cut on me again - I can't be pushing that much load but I don't have any figures yet.

I'll go out again tonight with my Evoscan a log whats actually happening but I'm gobsmacked that I'm still getting this. Have I mis-diagnosed something?
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Old Sep 19, 2009 | 08:00 AM
  #21  
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Originally Posted by CPhoenix
Right - I've fitted a manual boost controller, set it by eye to 1.2bar went out for a quick blip and had it cut on me again - I can't be pushing that much load but I don't have any figures yet.

I'll go out again tonight with my Evoscan a log whats actually happening but I'm gobsmacked that I'm still getting this. Have I mis-diagnosed something?
boost/fuel cut is not all about boost level.have you checked the airflow frequency at where the cut occurs?ill guess around 1600hz by what your describing.
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Old Sep 19, 2009 | 12:30 PM
  #22  
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Originally Posted by evonut270
boost/fuel cut is not all about boost level. have you checked the airflow frequency at where the cut occurs?ill guess around 1600hz by what your describing.
I've just done another run - hit 4600rpm this time when it cut - I've included the standard Airflow & 2byte Airflow since they are totally different and I dont know which to trust.
I've switched to using the 1byte load (ignore the 2byte load - something odd going on there).
Attached Files
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New-Pull-with-MBC.zip (11.3 KB, 0 views)
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Old Sep 19, 2009 | 06:28 PM
  #23  
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From: pa
did you change your Boost Limit yet? set it to 300% and you wont receive fuel cut.
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Old Sep 20, 2009 | 12:30 AM
  #24  
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I already raised max boost limit load 255% and 245% @ 6500,7000rpm.
Theres nothing in the logs to say I'm hitting this limit and I'm very worried about pushing the engine past any safe limits especially if the fueling & timing aren't set up.
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Old Sep 20, 2009 | 04:27 AM
  #25  
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From: pa
Originally Posted by CPhoenix
I already raised max boost limit load 255% and 245% @ 6500,7000rpm.
Theres nothing in the logs to say I'm hitting this limit and I'm very worried about pushing the engine past any safe limits especially if the fueling & timing aren't set up.
so richen it up until its about 11.1~ and pull a few deg of timing...... whats so hard about that? pulling the timing is just a precaution until the a/f gets in a decent range. 13+ a/f at WOT is asking for major problems.
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