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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

? Adjustment screw on efi

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Old Jul 9, 2011 | 03:15 PM
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my 75 toyota's Avatar
my 75 toyota
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? Adjustment screw on efi
1988 22re there is a plastic adjustmenrt screw on side of efi that has like 4 vaccum lines and it threads into efi manifold what is it for or do? Any ideas would be helpfull.
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Old Jul 9, 2011 | 03:44 PM
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MudHippy
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Sounds like an A/C idle up valve(actuator). Lets some air into the intake to raise the idle speed when the A/C is turned on. I believe that screw sets it.
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Old Jul 9, 2011 | 06:27 PM
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my 75 toyota
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idle up
yes i found out all ready removed it thanks
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