Disconnected or collapsed vacuum hose?
Disconnected AFM wire?

Karl Wolz
Sent from my electronic umbilicus

> On Jan 16, 2014, at 8:22 PM, JRodgers <jrodgers113@GMAIL.COM> wrote:
>
> Rough engine - the latest pita I'm having to deal with on a string of
> many!! I'm on a roll!!
>
> Ok - hot or cold - engine starts and idles well.
>
> Conditions - ISV disconnected due to Idle issues
> O2 Sensor Disconnected to put ECU in default mode.
>
> Cold engine: starts easily, idles easily, but upon attempted
> acceleration it bucks, kicks, snorts, hiccups, coughs - finally
> smoothing out at speed.
>
> Warm engine: starts easily, idles easily, but upon attempted
> acceleration it  bucks, kicks, snorts, hiccups, coughs - finally
> smoothing out at speed.  Only the bucking isn't quite so bad. Occurs
> mostly on the initial acceleration after idling successful.
>
> Suspicion: Throttle body switches out of limits and need adjusting.
>
> Anyone have any ideas about this?
>
> Thanks,
>
> John