5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

TPS set at .98 problems

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Old May 5, 2009 | 03:22 PM
  #1  
toms93lx's Avatar
toms93lx
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Joined: Mar 2009
Posts: 125
From: missouri
Exclamation TPS set at .98 problems

set the TPS to .98 and now when i drive it it idles at 2 grand.

the idle set screw is backed all the way out and the idle wont come down.

when i set it to .68 it idles at 800 in drive and 1000 in nutral.

how do i know if my idle control bypass ( what ever its called ) is working?

or is my lean condition from codes 41 and 91 couseing the bad idle condition?

no matter what i do i cant set the idle. have to set it with the TPS. the set screw doesnt do ****.....

what you guys think....

oh by the way ill have pictures of it this weekend
Old May 5, 2009 | 03:25 PM
  #2  
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toms93lx
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From: missouri
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forgot ........when set at .98 idles at 1500 in nuetral and 1100 in drive
Old May 5, 2009 | 03:38 PM
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Joel5.0
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From: Puerto Rico
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Setting the TPS to .98 or .9999 vdc is a myth, no need to, nothing is gained..... perform a Base Idle Reset procedure, and let the TPS closed throttle value alone if it falls within .6 - 1.1 vdc...... LUK.
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