2003 chevy S10 idle air control and fuel injectors?

Kyle S

New member
I know I have a problem with my IAC it sticks open sometimes, my question is if it is stuck open how does this affect the operation of the fuel injectors, on a recent trip I was coasting down a long grade approx 15 miles at 8 percent and I burned through an eighth of a tank of gas in 5 th gear just coasting no throttle input, on the return trip 3/4 throttle same grade 5th gear needle on fuel gauge barely moved, any info would be appreciated. Motor is a 4.3l V6 with 5spd manual.
 
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