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EFI throttle cable stop screw

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Old Aug 24, 2006 | 12:39 AM
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EFI throttle cable stop screw

1990 5.8. I would like to know if the throttle cable stop screw can be used to make -minor- adjustments to the idle speed. I'm talking about an adjustment of around 50rpm. The screw is on top of the TB and it is just a place for the throttle to rest on at idle. I am not talking about any screws on the blades or other things. Just that stop screw. And, if I do a minor adjustment to it will the computer just raise it back anyway? I don't want to be fighting the computer.

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Old Aug 24, 2006 | 09:54 AM
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what is exactly happening. the idle screw should not be moved and yes computer may try to adjust. if your idle is fluctuating its possible you have a vacume leak so check all of your lines. might also pull codes or run some seafoam thru the brake booster line
 
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Old Aug 24, 2006 | 12:14 PM
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It's not fluctuating but I think that it is a little bit too high. I'd prefer it about 50rpm less.
 
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Old Aug 24, 2006 | 12:15 PM
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It's not fluctuating but I think that it is a little bit too high. I'd prefer it about 50rpm less.
There are no codes, I just replaced the TPS and that was the only code, cleared that one and all is well.
 
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Old Aug 24, 2006 | 02:54 PM
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I think when you change out the TPS if you don't adjust it correctly it can change the idle speed.
 
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Old Aug 24, 2006 | 06:16 PM
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massey is correct. go to www.fordfuelinjection.com should have instructions on how to get the tps is the right range.
 
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