Where to buy 964 Hall sensor?

[A/SP911]

I've have no spark to my 1991 964 3.6L C2 engine shoehorned into my 914 racecar

After replacing a bunch parts starting with the obvious DME, crank sensor, etc... I put a ohm meter on my 3 wire Hall sensor on the dual distributor (or maybe some people call it pickup coil?) and it only briefly flashes a reading and disappears (which when compared to my Audi should hold an impedance if they work the same?)

I've looked on our hosts site and called the dealer but can't find a replacement, does anybody know where to get one?

...and if not does the 1990 944 S2 that looks similar work?


Yours in Motorsports
S.Chapman

[crg]

check out this site:

Hall Effect Vane Sensors, Hall Vane Sensor, HKZ101DC, HKZ101S, HKZ121, 2AV54, 2AV16A, 2AV51A, 2AV56, 2AV63, 2AV31E-J

[A/SP911]

I'll do that, thanks!

Meanwhile I tried to splice the one from my Audi A4 coil pickup into my 964 dizzy so I could make this weekends race ...but I must have overheated it with the soldering gun as it no longer reads any impedance now either

So I've done what probably most others with the same problem have done, and bought the best looking complete distributor I could find off of fleabay

Thanks
S.Chapman

[trak ratt]

I've been told that they were NLA so brit site looks interesting.

[A/SP911]

Originally Posted by crg

check out this site:

Hall Effect Vane Sensors, Hall Vane Sensor, HKZ101DC, HKZ101S, HKZ121, 2AV54, 2AV16A, 2AV51A, 2AV56, 2AV63, 2AV31E-J

Nice find! Any idea which one works for our application?
The only number I can find on my hall sensor is "224"

I wonder if they do one off sales to non-commercial customers?

Thanks
S.Chapman

[rsscotty]

I don't know if this would work unless I had one to try. They do say it is a replacement for Bosch distributors hall units.

https://www.efihardware.com/products/359/hall-effect-sensor

[ischmitz]

A missing hall sensor on 964 doesn't cause a no-spark. The engine will run perfectly fine, albeit with 6 degrees ignition retard. The adaptive knock sensing isn't working when the Hall signal is missing because the DME cannot ID the cylinder causing the knock.

Most (including me) don't even notice this as it doesn't throw a CEL. Only when using a Hammer or when flashing out fault codes. I had the harness wire broken and drove with that for long time.

Ingo

[A/SP911]

Yeah, my car still didn't start with the new dizzy

But here's one for the books ...er, forum

After getting tired of needing a second person to turn the key while checking for spark, signals, etc... and turning it over and over and over, we ran a jumper off the battery yesterday to the starter to save crawling through the rollcage to get to the key (miss my 911 in this instance) and it started

Tried key again and all it did was turn over, no start. I guess when turning the switch to crank, it must somehow lose the connection that controls the ignition side of things? So despite the ignition switch being only a couple of years old I've ordered another replacement from our Pelican host, but with the way my assumptions have been going ...I don't want to definitively say this is the problem quite yet till I (forgive the pun) try the switch

Meanwhile I've got a perfectly good spare distributor that I tried my Audi A4 hall sensor in to no avail, but destroyed my old sensor getting it out ...so I might still looking for a replacement sensor if anybody knows where I can get one?

Thanks
S.Chapman

[MA7008O]

Any luck???

I got the sensor, but to replace it..., please see this post: https://forums.pelicanparts.com/porsche-964-993-technical-forum/1167216-hall-sensor-replacement.html