FI pressure

steve ravet Steve.Ravet at arm.com
Fri May 7 22:25:49 GMT 1999


The knock sensor is just a microphone.  If you tap it with something
it'll make a signal that can be seen on a scope.  If are able to attach
it to the same piece of metal that your injector is in (on a flow bench
for example) you can see on the scope when the injector opens and
closes.  Put the injector voltage on one channel and the knock sensor
signal on the other and you can see when the injector opens in relation
to when the voltage tells it to open.  Lots more details are online in
the injector flowbench article in the projects section of the diy_efi
page.

--steve

Walter Sherwin wrote:
> 
> >   Next time, ya do it it's kinda neat to get a knock sensor, and scope,
> and
> >"look" at the injector for opening, and closing.  Kinda like using a
> >diagnostic scope for looking at firing voltages etc onna ICE.
> >Grumpy
> 
> Sounds like the makings of a neat idea.  Can you expand a bit on this
> please?
> 
> Walt.

-- 
Steve Ravet
steve.ravet at arm.com
Advanced Risc Machines, Inc.
www.arm.com



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