[T3] 1970 Fastback FI won't start

William J catnine09 at dslextreme.com
Fri Feb 16 10:26:28 PST 2018

 I've never heard the power relay click . I do hear the fuel pump relay 
always have.

 I wouldn't go by hearing clicks .

----- Original Message ----- 
From: "Jim Adney" <jadney at vwtype3.org>
To: <type3 at vwtype3.org>
Sent: Thursday, February 15, 2018 9:23 PM
Subject: Re: [T3] 1970 Fastback FI won't start

> On 15 Feb 2018 at 21:32, Gary Forsmo wrote:
>> Jim ... I know about the "two clicks" when the key is turned on and the
>> fuel pump is activated.
>>          You've gone over this listening for the 2 "clicks, numerous 
>> times.
>> But where do the "clicks" come from?
> The first click is actually 2 clicks: The FI main power relay and the
> fuel pump relay close essentially at the same time, so we only hear
> "one" click.
> The second click, ~1 second later, is the fuel pump relay opening.
> This happens when the brain realizes that there's no sign of the
> engine turning over. (If the engine was being cranked by the starter,
> or if it started, the fuel pump relay will stay closed.
> The main power relay is mounted on the left side of the rear seat
> kick panel. (Not to be confused with the rear defroster relay which
> is mounted right next to it on '69-'73 cars.)
> The fuel pump relay is mounted under the dash, on the "firewall" to
> the left of the steering column. It's easy to put your left hand on
> it while you turn the key with your right, so you can FEEL the clicks
> as it opens and closes.
> -- 
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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