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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

idle setting ?

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Old May 13, 2004 | 09:16 PM
  #1  
boond0cksaint's Avatar
boond0cksaint
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idle setting ?

what is the idle setting for an 88 f150 w/ 302 efi, c-6. on my 70 1/2 falcon i have it at 1000 in park and 850 in drive(idle). timed the motor to 10' btc and try to bump up the idle, when i get it to 1000, it wants to surge up and down, and when i put it in drive the idle drops way down then jumps up to about 800, set it back to where i had it and it runs perfect. old settings are at 900 rpms in drive and 650 - 700 rpms in drive. now i adjusted the tps to read 0.9v on the old idle settings, would i have to reset the tps settings if i adjust the idle? have not got a c.e.l for the tps, just 02 and egr but im going carb in a month anyway, just want to get my idle right. thanks in advance for any response.
 
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Old May 14, 2004 | 11:20 AM
  #2  
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EPNCSU2006
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650 - 700 in drive sounds just right. I'd leave it there because any higher and the computer gets confused - it thinks you are in the throttle, and so it won't idle.
 
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Old May 16, 2004 | 07:42 PM
  #3  
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The computer automatically sets the idle. 650-700 is a healthy idle in drive. It should be about the same in park also
 
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Old May 17, 2004 | 04:18 AM
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boond0cksaint
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when im in idle it stays between 700-750, when i put it in park it jumps up to 1500 then settles at 900. thanks for the replies. ill leave it where its at.
 
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