Date: Thu, 2 May 2013 23:54:43 -0400
Reply-To: Steve Cotsford <cotsford@AOL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Steve Cotsford <cotsford@AOL.COM>
Subject: Re: Bluestar project progress-small problems
In-Reply-To: <51832D33.3020908@turbovans.com>
Content-Type: text/plain; charset=iso-8859-1
Thanks for putting me straight Scott. Yes of course I meant oxygen sensor....its just because it screws into the cat.....duh!
Thats interesting that the single wire temp gauge sensor will drive the gauge wired for two wire sensor. I really hope you are right:-)
I encountered a very similar situation in a Volvo where that was not the case.
If there is any way I can keep the metal t-stat housing I would like to do so. I will be trying out the single wire signal.
Thanks again, Steve
On May 2, 2013, at 11:21 PM, Scott Daniel - Turbovans wrote:
> there is no such thing as a two wire screw-in temp sensor for a vanagon.
>
> take your yellow/red temp sender wire and connect it to the single
> contact on your screw-in temp sensor.
> I think it will work just fine if you don't even connect the brown
> ground wire..
> I think that goes to ground anyway ..
> but you can ground that brown wire .
>
> can sell you a plastic 2WD t-stat housing if you wish, new.
> the metal one is better. Obviously.
> the plastic ones shrink, dissolve, and generally fail in silly ways,
> eventually.
>
> Don't overthink it.
>
> cat converter cable ??? No wires go to the cat.
> perhaps you mean oxygen sensor .
> that connector is easy to identify ..
> the green coax........that's 02 sensor signal feed to the ecu.
> the double plug is 02 heat.
> anytime the engine is running you should see 12 volts there.
>
> On 5/2/2013 8:12 PM, Steve Cotsford wrote:
>> OK I think I have solved my mystery connector issue. Dennis put me on the right track.
>>
>> I have discovered that my engine is from an '86 syncro. As such, it has a METAL thermostat housing and a temp gauge sender that just has one wire (fits like a nail head on the sender instead of a plug. This sender screws into the housing.
>>
>> The van is an '89 2wd and presumably it had a PLASTIC thermostat housing on the original engine. It seems it had a 2 wire temp gauge sender as the wires in Bentley jive with this (two pin, red/yellow and brown wires). The sender would have been held in place with an o-ring and clip.
>>
>> What I need to find now is a two wire temp gauge sender that threads into the metal thermostat housing. Alternatively, I need a plastic thermostat housing to take the place of the metal one, so I can install the sender that gets held in place with an o-ring and clip.
>>
>> Does anyone know if in fact there is screw in two temp gauge sender ? If there is, I believe it would be for a 1987-1991 syncro with metal thermostat housing.
>>
>> Its confusing that both the temp gauge sender cable and the catalytic converter cable have plugs with same color wires (red/yellow and brown) as well as the same kind of connector. Only the length of the pigtail differentiates them.
>>
>>
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