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00RSTi, 06 GD STI, 09 GR STI
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Discussion Starter · #1 ·
Have a 2000 RS Coupe with a full 05 STI swap, including the pedal box.

However, when I go WOT the car goes into limp mode and sets error:

P2128 accelerator position sensor E high input

Any solutions for this?
83757
Or any reason why this is doing it?
 

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www.jackstalk.com
‘98 RS, 911 Cab, CT6 TT, Escalade ESV
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5,650 Posts
Who did the wiring? I had similar issues with my RSTi and the accelerator pedal wiring harness was causing the problem. It could also possibly be the pedal itself.
 

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00RSTi, 06 GD STI, 09 GR STI
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35 Posts
Discussion Starter · #3 ·
Who did the wiring? I had similar issues with my RSTi and the accelerator pedal wiring harness was causing the problem. It could also possibly be the pedal itself.
iWire did the harness merge
 

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1999 2.5RS
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359 Posts
1) Did you ever take your pedal assembly apart?
2) There is a little rubber/plastic "stop" that prevents the pedal from going to far at full throttle, see if yours has it.
3) As mentioned above, make sure the harness to your pedal hasn't been cut/isn't shorting.
 

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00RSTi, 06 GD STI, 09 GR STI
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35 Posts
Discussion Starter · #5 ·
Thanks all, my car was missing this, never made it over to the GC in the swap.

Found one in a junkyard, put it in, and that cured the issue.

83789
 
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