

| Subject: | Re: Engine stalling at high speed |
| From: | Tyler Hardison |
| Date: | Sat, 16 Apr 2016 16:31:04 -0700 |
I can confirm, having rebuilt my throttle body , that there is only one switch. On Saturday, April 16, 2016, Stuart MacMillan <stuartmacm@gmail.com> wrote: > Mine had both, and the two switches. I would think the throttle body would > be different for the cam switch. > > Stuart > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com > <javascript:;>] On Behalf Of Jeff Schwaia > Sent: Saturday, April 16, 2016 3:00 PM > To: vanagon@GERRY.VANAGON.COM <javascript:;> > Subject: Re: Engine stalling at high speed > > All the vans with Digijet should have the old style 1 or 2 switch setup, > depending on whether it has AC and/or power steering. > > Cheers, > > Jeff > > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com > <javascript:;>] On Behalf Of Tyler Hardison > Sent: Saturday, April 16, 2016 2:34 PM > To: vanagon@GERRY.VANAGON.COM <javascript:;> > Subject: Re: Engine stalling at high speed > > One switch. My build date is 3/85 > > On Saturday, April 16, 2016, Stuart MacMillan <stuartmacm@gmail.com > <javascript:;>> wrote: > > > My '85 with a build date of 8/84 has the two switches. Missed the cut, > > and Tyler's might have too. > > > > Stuart > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com > <javascript:;> > > <javascript:;>] On Behalf Of Dennis Haynes > > Sent: Saturday, April 16, 2016 12:32 PM > > To: vanagon@GERRY.VANAGON.COM <javascript:;> <javascript:;> > > Subject: Re: Engine stalling at high speed > > > > The 2 separate throttle switches was replaced with the single cam > > switch somewhere mid 84. All 85's have the later set up. 86 with the > > 2.1 also go a larger throttle plate. > > > > However speaking of blockages a catalyst that is broken down into ta > > golf ball size chunk can also block the exhaust causing engine shut > > down. If exhaust can t get out air can t get in. > > > > Dennis > > > > > > -----Original Message----- > > From: Stuart MacMillan [mailto:stuartmacm@gmail.com <javascript:;> > <javascript:;>] > > Sent: Saturday, April 16, 2016 3:14 PM > > To: 'Dennis Haynes' <d23haynes57@HOTMAIL.COM <javascript:;> > <javascript:;>>; > > vanagon@GERRY.VANAGON.COM <javascript:;> <javascript:;>; Tyler Hardison > < > > tyler@SERAPH-NET.NET <javascript:;> <javascript:;>> > > Subject: RE: Engine stalling at high speed > > > > Tyler has the single wire '85 1.9 O2 sensor according to his first post. > > Any short would be directly to that wire, easy to check at the harness > > connection with an ohm meter. That also means he has two throttle > > position switches, one closed throttle and one full throttle. > > Misadjusted closed switch will give bucking when crusing around 35 mph > > but it will clear beyond that. > > > > My money is on a clogged fuel pick up in the tank. I've heard of > > cardboard getting into improperly packaged tanks and causing this. :-( > > > > Stuart > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com > <javascript:;> > > <javascript:;>] On Behalf Of Dennis Haynes > > Sent: Saturday, April 16, 2016 11:18 AM > > To: vanagon@GERRY.VANAGON.COM <javascript:;> <javascript:;> > > Subject: Re: Engine stalling at high speed > > > > When opening the throttle makes things worse it is usually a fuel > > delivery problem, too lean or too rich can have a similar feel. Try > > resetting the ignition switch while still rolling. The steering should > > not lock until the key is turned all the way off and then lifted as > > when being removed so there should not be a fear of that. If it clears > > and goes for a while than most likely you have an O2 sensor circuit > > problem. Could be bad sensor or a wiring problem. A simple wiring test > > if you have ammeter handy is as follows. Disconnect the sensor and > > strip back the outer jacket on that green wire to get to the outer > > braid. With the ignition on (engine not > > running) check the voltage from the O2 sensor connection to the chassis. > > Should be ~.5 to .6 volt. Now check the outer braid to chassis. Must > > be real close to "0". Start engine and check again. Should be the > > same. If the outer braid is getting stray voltages you have a grounding > problem. > > Anything near or .2 or above can put the ECU into a runaway rich > condition. > > > > Dennis > > > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com > <javascript:;> > > <javascript:;>] On Behalf Of Tyler Hardison > > Sent: Saturday, April 16, 2016 1:12 PM > > To: vanagon@GERRY.VANAGON.COM <javascript:;> <javascript:;> > > Subject: Re: Engine stalling at high speed > > > > The engine behaves like it has a very extreme rev limiter in place. If > > I press in the clutch it dies. From there I can restart the engine > > like nothing happened. > > > > The AFM was replaced June of last year. > > > > O2 sensor around the same time. > > > > Coolant temp sensor in July of last year. > > > > Cleaned and tested the auxiliary air valve last month. > > > > New throttle body gasket last month. > > > > New fuel filters last month. > > > > New fuel tank two weeks ago. > > > > This problem feels electrical to me. Fuel starvation should cause poor > > running like a lean condition. Right? > > >
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