Hello, i have some high idle problem, when warm my engine still runs at 850-900rpm. (What the ultragauge show)
I have cleaned the MAF, IAC and TB, but it didnt change anything, and i think i actually have noticed some MPG loss on my ultragauge since. And i have no check engine.
What should i look at?
I have a ranger 4.0L OHV 2000.
Last edited by insistent; 08-12-2014 at 12:47 PM.