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Acceleration Sucks!

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Old May 28, 2010 | 06:49 AM
  #46  
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From: Chesapeake Beach, MD
Originally Posted by GST Motorsports
There are some tables that control throttle pull, meaning the ECU will pull down the throttle if it sees things over a certain limit.

Here is a logged occurance of what you guys are feeling:



- Bryan
So help me understand what i see here...

The throttle position sensor (TPS) is reducing the signal (versus input)? I would 'expect' the TPS to be flat line at WOT.

Why doesn't timing advance more? A function of the turbo/compression and
need to pull timing to reduce knocking?

And what is the 'orange line'?

Thanks for all the newB questions and your patience.
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Old May 28, 2010 | 10:20 AM
  #47  
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From: Hayward
Originally Posted by Veronica
So help me understand what i see here...

The throttle position sensor (TPS) is reducing the signal (versus input)? I would 'expect' the TPS to be flat line at WOT.

Why doesn't timing advance more? A function of the turbo/compression and
need to pull timing to reduce knocking?

And what is the 'orange line'?

Thanks for all the newB questions and your patience.
APP is requested throttle, TPS is actual

So you can see that 100% throttle is being requested (foot to the floor) but the ECU is pulling it down from requested.

Orange line is turbo solenoid duty cycle

- Bryan
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Old May 28, 2010 | 11:54 AM
  #48  
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From: NJ
So you're working on fixing this issue??
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Old May 28, 2010 | 12:39 PM
  #49  
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From: 818 SoCal
Would a Cobb tune fix this?
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Old Jun 2, 2010 | 01:01 PM
  #50  
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From: Chesapeake Beach, MD
Thank you so much! Me dumber not so much now...
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Old Jun 4, 2010 | 05:46 PM
  #51  
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From: NJ
I don't think the Cobb tune would fix this..
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Old Jun 5, 2010 | 09:40 AM
  #52  
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To be honest mine launches just fine. even gave my friend a headache hah
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Old Jun 5, 2010 | 09:49 AM
  #53  
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Originally Posted by ralli time
To be honest mine launches just fine. even gave my friend a headache hah
Rev launching??
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Old Jun 5, 2010 | 10:26 AM
  #54  
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From: PA
How does the Evo MR accelerate in Normal without LC? I couldn't stand the delay when owning my R/A.
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Old Jun 5, 2010 | 10:56 AM
  #55  
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From: Hayward
Originally Posted by Skym
I don't think the Cobb tune would fix this..
Ecuflash can 100%, if you have the proper tables.

This "Problem" is completely gone from my personal RA.

- Bryan
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Old Jun 5, 2010 | 10:58 AM
  #56  
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From: NJ
Originally Posted by GST Motorsports
Ecuflash can 100%, if you have the proper tables.

This "Problem" is completely gone from my personal RA.

- Bryan
But no free flash from you??
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Old Jun 5, 2010 | 11:00 AM
  #57  
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From: Burbs, Chicago, IL
Originally Posted by GST Motorsports
Ecuflash can 100%, if you have the proper tables.

This "Problem" is completely gone from my personal RA.

- Bryan
i need to get my tuner in touch with you...
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Old Jun 5, 2010 | 11:15 AM
  #58  
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From: Sioux falls, South Dakota
Originally Posted by Skym
Rev launching??
Yah i rev launched it. . but if you dont do that i agree the accleration does suck
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Old Jun 5, 2010 | 11:26 AM
  #59  
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From: NJ
Originally Posted by ralli time
Yah i rev launched it. . but if you dont do that i agree the accleration does suck
Okay just checking if we're on the same page
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Old Jun 5, 2010 | 12:38 PM
  #60  
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From: GA
Originally Posted by GST Motorsports
Ecuflash can 100%, if you have the proper tables.

This "Problem" is completely gone from my personal RA.

- Bryan
How do you think this will strain the SST? Since I thought the purpose of that delay is so you aren't putting too much on the SST at launch.

Last edited by rAWjAW; Jun 5, 2010 at 12:38 PM. Reason: typo
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