Date:         Mon, 28 May 2012 19:00:05 -0700
Reply-To:     neil n <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil n <musomuso@GMAIL.COM>
Subject:      Re: Digifant Electrical Experts: New Harness + 4 Pin Hella 53
              Relay for ECU?
Comments: To: mark drillock <mdrillock@cox.net>
In-Reply-To:  <4FC425EA.9000307@cox.net>
Content-Type: text/plain; charset=ISO-8859-1

Right ok. I get what you mean.

So does that diode shown on P. 97.124 do?


On Mon, May 28, 2012 at 5:46 PM, neil n <musomuso@gmail.com> wrote:

>  ...... Relay diagram shows what may be a
> suppressing diode in parallel at relay coil.

Yes. I was referring to the diagram on the relay itself. I recall now
about that part shunted in parallel being a resistor.

Apologies for taking up bandwidth with this. IIRC, I searched "relay
53" in the archives and over on thesamba. I should have varied up my
search terms.

Neil.

On Mon, May 28, 2012 at 6:27 PM, mark drillock <mdrillock@cox.net> wrote:

> Sorry, I meant the ECU relay diode shown in the 88/89 Bentley diagram is not
> being used as for suppression. The most common FP and ECU relays are the
> Type 53 relays and these have a suppression resistor across the coil pins.
> Perhaps that is what you saw on the diagram on the relay itself?
>
> Mark
>
>
>
> mark drillock wrote:
>>
>> First of all, there are serious errors in that ECU/FP relay part of the
>> 88/89 Bentley Digifant diagrams, with connections shown wrong. Second,
>> the change to the more complex ECU relay with diode did not occur
>> exactly on the 88 model year break so your 88 may have come with the 87
>> type FI harness.
>>
>> That diode is NOT being used as a suppressing diode.
>>
>> Mark
>>
>> neil n wrote:
>>>
>>> Hi all.
>>>
>>> Am finding a bit of poor work and mysterious things in my 1988 Westy
>>> engine bay.
>>>
>>> Situation: engine bay wiring harness likely replaced. ECU and fuel
>>> pump relays are both 4 pin Hella 53. Relay diagram shows what may be a
>>> suppressing diode in parallel at relay coil.
>>>
>



-- 
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