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sc400 kickdown lag

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Old Apr 12, 2009 | 09:42 PM
  #1  
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Default sc400 kickdown lag

on take off on my sc400 it hold back power till it reaches 20mph, any solutions
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Old Apr 12, 2009 | 09:57 PM
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welcome to the 1uzfe ownership group.
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Old Apr 12, 2009 | 10:40 PM
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Originally Posted by LiCelsior
welcome to the 1uzfe ownership group.
LOL.
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Old Apr 12, 2009 | 10:45 PM
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disconnect SLN- (Red/Black wire on pin 13) from the ecu and try it again. you'll feel a difference.
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Old Apr 13, 2009 | 04:40 AM
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have you done your maintainance? your coils might be going bad.. sounds very similar to mine.
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Old Apr 13, 2009 | 10:54 AM
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thanks for the replies, im kinda new to the forum
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Old Apr 13, 2009 | 10:55 AM
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which coils if u can specify
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Old Apr 13, 2009 | 11:19 AM
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ignition coil.
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Old Apr 13, 2009 | 11:27 AM
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Mine has terrible take-off. Bogs down like crazy until 15-20 MPH then it really wakes up all of a sudden.

It's very rare that I can just punch the gas from a stop and spin tires (assuming traction control is off).
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Old Apr 13, 2009 | 11:28 AM
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There is a solution.

Manual swap - get cracking... best mod I have done yet.
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Old Apr 13, 2009 | 11:36 AM
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what he said^^..........I envy your car right know...........lol
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Old Apr 13, 2009 | 11:37 AM
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the 400s gearing really sucks on take off...once it hits 3k rpm, all hell breaks loose.

Red, how much did ur whole conversion cost? including the w58, pedals. etc.
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Old Apr 13, 2009 | 11:44 AM
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I'm thinking about an r154 this summer. We shall see.
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Old Apr 13, 2009 | 11:57 AM
  #14  
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Originally Posted by sc-driver
disconnect SLN- (Red/Black wire on pin 13) from the ecu and try it again. you'll feel a difference.
what does that wire control that is so unnecessary?
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Old Apr 13, 2009 | 12:24 PM
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Originally Posted by LiCelsior
the 400s gearing really sucks on take off...once it hits 3k rpm, all hell breaks loose.

Red, how much did ur whole conversion cost? including the w58, pedals. etc.

Around 1600ish. give or take of course...
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