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I went through 2 in short order. I sourced a 3rd after verifying it was a working unit I removed my EZ-69 , coil, distributor
and
installed a stand alone ignition from Clewett Engineering. I have an older Xdi-2 it has been flawless and has nice extra features.
you can remove and send your front pulley to Clewette - they can install a 62-2 wheel behind the pulley.
My reasoning for aftermarket was the 3rd EZ-69 I got was used, an old electrical part that lives in a vibrating hot engine compartment can go out at any time.
like I mentioned before - I have all the parts and did not cut or permanently remove anything and can go back stock in a few hours
At least there is a solution IF you cannot find an EZ-69
I'm a bit amazed that Porsche haven't ordered up a pile of them from Bosch to keep these legends on the road, prob would cost them $50 a unit to make or less. Or that someone hasn't hired a shop in China to replicate it for maybe, $20 a piece. Anyone around this board who's in the electrical components business? Let's get some made.
wicks, I hope that you find a good one. So, there is no one in the aftermarket that repairs or remanufactures the EZ69. I can swear that there was a company in Germany or in Poland?
Up close of the offending unit: it may not be the original, also the red paint across the top is broken, and a piece of the plastic shroud holding the vacuum line is broken off. It looks quite openable to me, perhaps I should take it to an electronics repair shop or two and have them see if they can recognize what component on the board fried and try to fix it...
Is a reputable provider, I know from my own experience. However, with shipping it will be around 500 bucks, so not cheap.
I would double check if the diagnosis is correct. The EZ69 needs supply voltage and input signals, if there is a failure possibly the output signal to the ignition coil will not be switched. The reason for the missing ignition spark is not necessarily a defective component on the circuit board.
Based on the age of these things they can't be particularly sophisticated inside - my guess is probably mostly discrete logic ICs and maybe some primitive GAL or similar. With the amount of modern ignition control systems now available (and DIY such as megajolt) I'm really surprised that someone hasn't reverse engineered the module yet.
have a look inside ...
I took apart one of my dead EZ-69's
I heated the unit in an oven 200 degrees then 250 degrees , but no luck the glue Never softened
$500 is cheap, compared to what people want for a working spare unit. I emailed them yesterday, still waiting for a response. Did you use them in the last couple of years? If they can fix it successfully we should have them do a dozen so this silly crisis doesn't happen to other 964T owners. I'd cover the cost and have a box of working units for anyone in need at $500 a piece.
thanks
Stefan your thread there is one of the 5 pages that turn up when you google EZ69 porsche ignition repair. Enjoyed seeing it and exactly what I mean, some Chinese shop could replicate those bosch guts in a couple days. Maybe if we used a little dremel blade that cools well to open the case...
Originally Posted by fritz k.
Bosch Repair Service is the first choice, but the request must be settled via a workshop (Rusnak Pasadena).
Is a reputable provider, I know from my own experience. However, with shipping it will be around 500 bucks, so not cheap.
I would double check if the diagnosis is correct. The EZ69 needs supply voltage and input signals, if there is a failure possibly the output signal to the ignition coil will not be switched. The reason for the missing ignition spark is not necessarily a defective component on the circuit board.
Megatron you sound perfectly qualified to lead the replication effort. Do I hear a second?
Originally Posted by Megatron-UK
Based on the age of these things they can't be particularly sophisticated inside - my guess is probably mostly discrete logic ICs and maybe some primitive GAL or similar. With the amount of modern ignition control systems now available (and DIY such as megajolt) I'm really surprised that someone hasn't reverse engineered the module yet.
Megatron you sound perfectly qualified to lead the replication effort. Do I hear a second?
Looking at that image of the opened unit confirms that it's a fairly basic system with fairly large sized components and the only moderately complex part being that plcc chip (probably a rom or small microcontroller).
I'm no electronics guru (I'm more of a software guy) - I can usually follow a diagram and used to be able solder relatively fine stuff... Back in my twenties! Not so much now nearer 50! I do agree with others that it would seem easy enough (everything being relative to say a modern ECU and integrated ignition control system!) For some Chinese firm to reverse engineer and replicate the unit.
Last edited by Megatron-UK; 04-26-2023 at 07:44 PM.
04-24-2023, 08:41 PM
Wanted - EZ69
