[Diy_efi] RE: Nissan KA24E ECU and CAS

[Tom Visel]

How to mail a pic? I assume attachments will be stripped, so there's an 
FTP somewhere?  I just took pics, not awesome ones, but between John's 
link and the pics, some useful info should be gleaned.  In case it 
doesn't come through, there is a fat slit in the CMP (sorry for the ISO 
terms vs. Nissan ones, it's a habit!) portion of the wheel, which 
identifies cylinder #1.  I have had an oil-fouled interrupter plate not 
fire the injectors every time the blocked hole came around, so I know 
the inner ring of holes is used to trigger the injectors.

TomV

Mike wrote:

>Suggest email us a picture, because this sounds so much like the
>RB30 CAS and I have done a study of that one, there is no cam
>control but there are two lots of pulses which overlap to signal tdc...
>
>rgds
>
>mike
>
>
>
>At 12:00 AM 5/5/06, you wrote:
>  
>
>>1. Yup.  Fought one for a while; dealt with the same problem on an Altima, and similar problems on the VG30 which has the same setup.
>>2.
>>3.  No extra or missing slits; the 360 slits are actually for the crank angle sensor and the four slits, spaced inboard of those, are for the cam sensor (cylinder ID,) with one being wider then the others.  The signal conditioner makes the outputs into square waves.  There is no dead space in the ring of 360.
>>
>>
>>John Smith1882 wrote:
>>
>>    
>>
>>>1. Do you know that for sure?
>>>2. n/a
>>>3. I know all about the sensor except what the conditioning circuit does. Does it just "clean up" the rounded square wave signal from the optical sensors, or something else? On the 360 slots, is there a dead space like the #1 injector window?
>>>
>>>
>>>      
>>>
>>>>Date: Wed Apr 26 15:48:43 CDT 2006
>>>>From: Tom Visel five10man at commspeed.net Subject: RE:Nissan KA24E ECU and CAS
>>>>To: diy_efi at diy-efi.org
>>>>
>>>>
>>>>1. ECU will get all sorts of stupid without CAS.  Anything from not running at all to limp-in.
>>>>2. Don't know.
>>>>3. 360 slots, photocoupler-read, conditioning circuit inside the distributor.
>>>>        
>>>>
>>>
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>>>      
>>>
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>>    
>>
>
>
>
>Regards from
>
>
>Mike Massen
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