[V8] Dizzy Hall sensor, knock sensors

[Dave Saad]

Just some random thoughts John:

I just cured a MIL light problem by finding that my distributor caps were shorting through the black conductive cover around them.  It was weird - the motor seemed to run fine but I kept getting a too rich code.  bottom line is suspect everything...

have you checked the 5 volts at the distributor?

any possibility you have some worn or missing teeth on the starter ring gear?  as I recall, the symptom was not running too well above about 2k RPM for someone else who had this problem.

Is the timing sensor mounted properly? if it is too far away from the teeth, same problem as above??

any chance the fuel pump is crapping out? can it supply enough fuel under load and at speed?



On Sep 19, 2012, at 4:27 PM, John Bysinger wrote:

> I think you are correct, searching the internet I found this:
> 
> http://www.900saab.com/dizzy.html
> 
> Which clearly shows that the Bosch internal sensor part in the SAAB dizzy
> is identical to ours.  More googling on the Hall sensor's markings says the
> one in my '90 is Siemens HKZ101, which Siemens stopped making in the late
> 90's.  But there are a few places that have a Chinese manufactured
> duplicate, a ChenYang BBHME301 (Used to be named CYHME301, but they changed
> it.)  The SAAB is a HKZ121, which seems to have compatible specs.
> 
> http://www.bbautomacao.com/home_hall_effect_sensor_cyhme301.html   $50 here
> https://www.jaycar.com/productView.asp?SUBCATID=977&CATID=78&ID=ZD1900&URL=index
> $20ish
> here, $10 int'l shipping from .au
> And, of all places, the 200q20v list on audifans!  A guy there bought
> several
> http://www.audifans.com/pipermail/200q20v/2012-March/029195.html
> 
> I'm supposed to hear back from my local import shop owner this evening to
> see if he's got a better source, but it looks like I've got some options.
> 
> HKZ101 data sheet http://www.datasheetarchive.com/HKZ101-datasheet.html
> HKZ121 data sheet
> http://www.datasheetcatalog.org/datasheet/siemens/Q67000-A9097-A401.pdf
> CYHME301 data sheet
> http://www.bbautomacao.com/home_hall_effect_sensor_cyhme301.html
> 
> 
> 
> On Wed, Sep 19, 2012 at 2:32 PM, <bw at udel.edu> wrote:
> 
>> Hi,  My mechanic recommended the possibility of using a Hall Sender from
>> an early
>> V6 SAAB, a 93  or 900(?). There are different connectors, so shop for one
>> that fits.
>> I hope this is correct info and it may save many V8s if he is proven to
>> be right.  Bob
>> 
> 
> 
> 
> -- 
> john at bysinger.net
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