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Subject:Volksiebus - 88 Transporter - Rough Running Engine
From:JRodgers
Date:Thu, 16 Jan 2014 21:22:44 -0600

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