

| Subject: | Re: Volksiebus - 88 Transporter - Rough Running Engine |
| From: | JRodgers |
| Date: | Thu, 16 Jan 2014 21:52:56 -0600 |
On 1/16/2014 9:43 PM, SDF ( Scott Daniel Foss ) wrote: > re > Suspicion: Throttle body switches out of limits and need adjusting. " > > is it making contact at idle or not ? > it either is, or it isn't. > which one ? It idles beautifully! 800 rpm. > > if you need to know how to adjust it, > or how to tweak it when normal adjusting won't work anymore, just ask. Just might do that. > > There is just nothing like 'having everything in spec, and every feature > checked.' Agreed! > > if it's rough at idle.. > you start by checking compression, and for intake leaks. Idle is smooth as silk. > > how are the injector spray patterns ? Dunno - but recently serviced. > > Does the O2 sensor have a decent output ? Dunno > if no..why isn't there a new one on the engine .? Just haven't gotten thee yet. > if yes, why isn't it connected ? I disconnected it to see if it made a different, It did not!! > > lol..reminds me of a time I didn't really want to work on a guys Jaguar > ..I asked him.. > who's your regular jag mechanic ? > he said I was. > So who is your regular vanagon/waterboxer mechanic john ? Guess!! Uno numero!! at your service. Can't get garages around here to work on them. John > > On 1/16/2014 7:22 PM, JRodgers 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 >> >
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