'85 4kq no start, no fuel to injectors.

[Ben Swann]

On Tuesday, July 30, 2002 5:36 PM, Ragnampiza at aol.com
[SMTP:Ragnampiza at aol.com] wrote:
>
> In a message dated 7/30/02 8:00:48 PM, bswann at worldnet.att.net writes:
>
> << Patient is '85 4000 Quattro with CIS-E.
>
> Car was driven to me.  PO had needed to jump start the car to get it
> running and seemed to be running fine when I received the car.  I have
not
> been able to get the car started since, except for some short startup
then
> dying.
>
> After major cleanup of engine bay, wiring, ground points, etc. the engine
> now cranks longer than before.  It still doesn't start, except only
briefly
> which I attribute to cold start injector fuel.  I have confirmed that
> theory by being able to start the car with ether.
>
> I am sure I am getting fuel to the distributor, as I hear the pump
running,
> and can jumper it and hear fuel flowing.  I had confirmed spark earlier.
 I
> have replaced the air filter and cleaned up the airflow assembly and
> throttle body - they were abysmal!  All clean now.
>
> So I pulled injectors 1 & 2.  Lifting the air sensor plate even through
its
> total range does not cause injectors to spray at all, not a drop.
>
> What are the likely culprits?
>
> Ben >>
>
> I think the injectors will only spray while ignition switch is in the
crank
> position until startup.....

No - that is not correct.  With the fuel pump jumpered on, you should be
able to test the injectors and spray pattern by lifting the sensor plate.

> on every 4kq I 've owned .....the first thing I change are the injector
> seals....makes a world of difference ...

Yes it helps.

they are usually dry and cracked and
> will cause the car not to fire...
no, but might cause hard starting.
..this is also an esential fix to pass
> smog...remember these cars are pushing 20 now and this item is usually
> overlooked

Anyway, the injectors were not spraying at all, despite fuel delivery and
sensor plate being lifted to its fullest extent.

I found the problem..keep guessing.  Answer in subsequent email.

Ben