Question about 1993 Toyota Pickup

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1993 toyota 4x4 idle problem

Replaced head gasket. Truck idles actually fluctuates between 2000 and 2500 RPM's. mass air flow senser is good. swaped throttle body and throttle position senser no change.vacuum lines may not be correct but truck idled better before I swaped throttle body 1200 rpm's . I have swaped them back and forth several times with no change. any ideas I'm racking my brain.

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Sounds like your throttle positioning sensor is not set right so i would undo the two phillips heads that hold it and turn it till the idle doesnt fluctuate should be turned most of the way to the front of the truck. Also check your idle screw that throttle body could be set different.

Posted on Sep 23, 2009

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Posted on Jan 02, 2017

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