Date: Sat, 16 Apr 2016 16:30:18 -0700
Reply-To: Stuart MacMillan <stuartmacm@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stuart MacMillan <stuartmacm@GMAIL.COM>
Subject: Re: Engine stalling at high speed
In-Reply-To: <00ab01d1982b$65b98dd0$312ca970$@gmail.com>
Content-Type: text/plain; charset="utf-8"
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] On Behalf Of Jeff Schwaia
Sent: Saturday, April 16, 2016 3:00 PM
To: vanagon@GERRY.VANAGON.COM
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] On Behalf Of Tyler Hardison
Sent: Saturday, April 16, 2016 2:34 PM
To: vanagon@GERRY.VANAGON.COM
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> 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:;>] On Behalf Of Dennis Haynes
> Sent: Saturday, April 16, 2016 12:32 PM
> To: vanagon@GERRY.VANAGON.COM <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:;>]
> Sent: Saturday, April 16, 2016 3:14 PM
> To: 'Dennis Haynes' <d23haynes57@HOTMAIL.COM <javascript:;>>;
> vanagon@GERRY.VANAGON.COM <javascript:;>; Tyler Hardison <
> tyler@SERAPH-NET.NET <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:;>] On Behalf Of Dennis Haynes
> Sent: Saturday, April 16, 2016 11:18 AM
> To: vanagon@GERRY.VANAGON.COM <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:;>] On Behalf Of Tyler Hardison
> Sent: Saturday, April 16, 2016 1:12 PM
> To: vanagon@GERRY.VANAGON.COM <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?
>
