Date: Sun, 10 Mar 2013 16:08:51 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Throttle stop switch? Stumbles on resume throttle..
In-Reply-To: <CAB2RwfjPMFg+usqVt2LXqWpLTndBckQJuaCvCywKQgPW6t5rLQ@mail.gmail.com>
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re worn wbxr throttle body switch .
I installed an electropneumatic throttle switch that came with a Chris
Corken rebuilt 2.2 wbxr engine..
reads the actual air ..
which is whatit really wants to read , about determining if the
throttleis at idle position or not ..
I find that the mechanical switches and throttle bodies get tired
eventually and don't work consistently like they once did.
On 3/10/2013 3:13 PM, neil n wrote:
>> When going down hill at road speeds, your foot is off the gas on steep hills and the injectors are off until. engine rpm drops to about 1200 rpm.
> That's a good point; something I could learn from on my WBX
>
> Don: if it helps, and I know this sounds obvious, but I think of the
> specified gap as the switching point. (I think Bentley refers to it as
> such) So, say, at .007 mm this is when the ECU is told what to do. Or
> in other words, foot *slightly* on gas, is where the switch point
> happens AFAIK.
>
> Hopefully your version of Digifant has a switch that's easier to set
> than the WBX 2.1 That thing is kind of a joke (taking into account
> worn parts)
>
> Neil.
>
> On Sun, Mar 10, 2013 at 2:18 PM, Robert Keezer <warmerwagen@yahoo.com> wrote:
>
>
>> Don, as you may know, the throttle switch , actually 2 switches, is called the wide-open throttle switch and the idle switch .
>> Wide -open tells the ECU the throttle is fully open and idle tells it that it's closed.
>>
>> When going down hill at road speeds, your foot is off the gas on steep hills and the injectors are off until. engine rpm drops to about 1200 rpm.
>>
>> That means that the engine is not running during this time
>> The pop may be from a leaky injector not fully closing and leaking gas .
>>
>> Just like the WBX engine, the throttle switches need to be checked for adjustment periodically.
>>
>> Should read zero Ohms at closed throttle, infinite ohms as the throttle opens, and zero Ohms again at full throttle.
>>
>> You should hear a click just as you open the throttle. You adjust by moving he switch forward or back on the plate after loosening the set screw.
>>
>> Robert
>> 1982 Westfalia
>>
>>
>
>
>
> --
> Neil n
>
> 65 kb image Myford Ready For Assembly http://tinyurl.com/64sx4rp
>
> '88 Slate Blue Westy to be named.
>
> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>
> Vanagon VAG Gas I4/VR Swap Google Group:
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>
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