[Diy_efi] re: Problem with cam mounted optical trigger sensor

[mark krawczuk]

hi,  is the signal level high enough ? might be clean but not high enough,

mark k



----- Original Message ----- 
From: "Damian Long" <bigcow_610 at yahoo.com.au>
To: <diy_efi at diy-efi.org>
Sent: Monday, April 10, 2006 4:51 PM
Subject: [Diy_efi] re: Problem with cam mounted optical trigger sensor


> Ok, well I've all but given up. Saturday I was ready to give up and I may 
> just do that and try find someone with the knowledge to fault find the 
> problem.
>
>  I've thought some more about what is going on. If the signal coming from 
> the optical sensor is clean then the problem is at the sensor right? I 
> mean if I have a dirty signal I should see it on the scope shouldn't I? 
> The problem is still EMI related because changing the plug leads made such 
> a difference.
>
>  My thinking then is that the problem is assisted by the EMI but is in 
> fact in the sensor. Possibly thermal expansion (as Jay mention to me 
> earlier) is causing misalignment in the sender reciever or extending 
> distance between just that little bit. In turn the EMI is enough to 
> trigger a false falling edge inside the conditioning circuit. Possible? I 
> don't know. But the signal is clean and the ecu rpm jumps all over the 
> shop in spikes just like EMI causes, but the scope signal looks clean.
>
>  Matt, I tried calling you a couple times. I sent you an email also. Would 
> love to catch up if only for a chat about my issues. My no. is 0421912980
>
>  thanks
>
>  Damian Long
>
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> 1. Injector offset vs voltage (Daniel Nicoson)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 8 Apr 2006 22:10:50 -0400
> From: "Daniel Nicoson"
> Subject: [Diy_efi] Injector offset vs voltage
> To: "DIY_ EFI"
> Message-ID:
> Content-Type: text/plain; charset="iso-8859-1"
>
> Anyone have the table showing the standard size Ford injectors and their
> corresponding voltage offsets? (19#, 24#, 30#, 36#, 42#)
>
> I thought I had it saved on my hard drive but for the life of me, I can't
> find it.
>
> I also had a link to it on the www.nilesedge... web site but that thing is
> gone now.
>
> I've been all over Google and several discussion groups "files sections" 
> and
> I can't find it.
>
> Any help?
>
> Thanks,
>
> Dan Nicoson
>
>
>
>
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> End of Diy_efi Digest, Vol 14, Issue 9
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