Re: ECM And Ignition Module Availability/ replacement
 

Yeah, it's an understatement to say we're very lucky to have Jerry and his desire to keep the ZR-1 legend alive.

Re: ECM And Ignition Module Availability/ replacement
 

You get all the credit for that Todd :cheers:

Re: ECM And Ignition Module Availability/ replacement
 

How about just an harness extension for the DIS so I don't have to break my wrist to put it back on! LOL

Re: ECM And Ignition Module Availability/ replacement
 

What happens when this module goes bad? Has anyone had one fail?

My thought would be at that point to run CNP, and use maybe an LSx computer or stand alone mega squirt to get this engine running. That seems a bit more feasible.

Re: ECM And Ignition Module Availability/ replacement
 

I believe the majority of customers will want only to replace the failed DIS module with the least amount of alterations or modifications and keep it original in appearance, all at the lowest cost.


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Re: ECM And Ignition Module Availability/ replacement
 

Your right Jerry but that harness extension is a great idea and an improvement over original design. Regardless Jerry thanks for all you do for the LT5 community. GC

ECM And Ignition Module Availability/ replacement
 

On my 95' when I was having trouble with INJ1 fuse blowing.....I took that harness all apart and soldered all mechanical original splices and ended up with a couple inches of additional length in the harness after retaping. Which apparently solved the INJ1 fuse issue ;)

Besides the 8 wire connector there are 3 other connections to DIS which all gained length during retaping after soldering the splices. Each connector wiring was inserted into a 1/4 inch split loom to make sure shorted wires was not the issue.


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Re: ECM And Ignition Module Availability/ replacement
 

After reading this post we should all be buying all of our parts from Jerry


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Re: ECM And Ignition Module Availability/ replacement
 

I searched 19152968 and came up with a few sites that claim to have them. This number came from Marc's site as a remanufactured unit. I don't know enough about these to know if this is really what we need for the correct ECM. Is anyone familiar with what this is?

Thanks,
Bill

Re: ECM And Ignition Module Availability/ replacement
 

Was thinking about this today and thought it could use a bump..

Just curious on the challenges on this.. I know Jerry is working on something..

Re: ECM And Ignition Module Availability/ replacement
 

LSx computer or MegaSquirt with CNP module or use late model Cayenne/928 COP coils. Thing is getting it to talk to CCM and BCM, etc.

Re: ECM And Ignition Module Availability/ replacement
 

Still working on it. We hit a long delay when one of the sub-contractors was obligated on another project. Back on the project now and making steady progress. One of the more obvious challenges in the initial phase is developing the receiver connectors that are molded into the OE DIS. The priority for electrical connectors is to make it all the same as the OE DIS within cost feasibility parameters. The 14 pin connector would be better if the female side was on a wire lead of about 6" in length, so that has been taken into account.

Re: ECM And Ignition Module Availability/ replacement
 

Yes, there are alternatives to the OE DIS Module. There are negatives And positive considerations, cost, complexity, better performance on modified engines, plug & play installation, modified vs stock appearance and accessibility.

Our objective is direct replacement of the OE DIS Module, without modifications in consideration of cost affordability & justification.

Re: ECM And Ignition Module Availability/ replacement
 

I will say I did reach out to a few individuals I know at Continental that were there when it was Motorola Telematics and Motorola Automotive. Being the design was in the late 80's and the acquisitions along the way I am quite sure the original designs are long gone or sitting in the bottom of a box somewhere..

Also I know they are not in any of the buildings they were in when it was Motorola Automotive division, so my best guess is any Motorola documentation has been shredded..

I did try though..

to add: one guy I knew remembered the project but wasn't part of it. He felt it was like finding a needle in a haystack

Re: ECM And Ignition Module Availability/ replacement
 

Re: ECM And Ignition Module Availability/ replacement
 

Thanks Jerry.


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Re: ECM And Ignition Module Availability/ replacement
 

Jerry,

Can u outline any of the functional specs on this? Is this strictly a direct replacement or does it incorporate any enhamcements? Is there a price point?

Re: ECM And Ignition Module Availability/ replacement
 

Not until beta testing is complete. There may be changes between concept & production.

That is the intent.

None are planned. What are you thinking of in regard to DIS Module enhancements?

Not yet. Until beta testing is satisfactorily completed, and production costs for the initial run are fixed, there is no way to calculate amortization of R&D + Cost of Goods.

Re: ECM And Ignition Module Availability/ replacement
 

Great work Jerry keep it up. GC

Re: ECM And Ignition Module Availability/ replacement
 

Thank you, Jerry!

Re: ECM And Ignition Module Availability/ replacement
 

Jerry have you thought about setting up a kickstarter or something of the sort to help you with the development? I'm more then positive alot of owners would like to contribute.

https://www.kickstarter.com/

Dave

Re: ECM And Ignition Module Availability/ replacement
 

dude you are the master!

but on the parallel track what anything happening with Ron and Raptor?

I'm still interested in the megasquirt and coil on plug as I have no romance with stock and someone in need can have my DIS

the megasquirt looks like if it was piggy backed into the factory setup a bit better all those dumb gauges would work for mileage I could care less I need to talk Phil into giving me his!!

Anyway, Jerry, great job. That allows you to push the easy button and keep the cars running well

I'm interested as always in turbos and the megasquirt seems the way to go or a hollley, or high end ecm I think one of the boat coils will work and fit nicely we looked at the coils from a saturn sky redline and they are close (and really cheap!!)

Graham, I'd love to hear more about tuning the turbo cars with the linc and ideas to cut over the lt5 to a bit better engine management setup

megasquirt is certainly cost effective the ms3 is down to 1200 or so with a wiring harness I don't know what the raptor plug and play deal costs but as graham points out you lose a few things on dash for mpg ect...

going to take lots of tuning time as well

Re: ECM And Ignition Module Availability/ replacement
 

I admire the dedication Jerry. I'll certainly buy one the moment you indicate it is available. Thanks again from all if us, for the work you're doing and the invested dollars to help us enjoy the LT-5😉

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Re: ECM And Ignition Module Availability/ replacement
 

I would agree w Ron in that if a redesign of the ICM is contemplated, then certainly incorporate the option of utilizing newer technology, ie CnP. Some may object aesthetically, but I think there alternatives for that. Implementing individual coil per cylinder allows for longer dwell times, which would benefit higher rpm operation. With hotter spark, u can increase plug gap making for a smoother idle (nice for cammed motors. The GN crowd uses CnP allowing higher boost without blowing out the spark.

Re: ECM And Ignition Module Availability/ replacement
 

I agree conceptually. Insofar as the big picture is concerned, the larger concern is for a stock function, direct replacement. My personal ZR-1 is highly modified and could likely benefit from CoP. Having said that, the segment of the market subscribing to such modifications is very small.

Spending more on R&D for non-stock bells & whistles runs the cost up higher moving the DIS Module towards economically impractical. FWIW, the DIS/ICM project would not be feasible to produce if the economics had to stand alone. It's only because we can let other item sales contribute to the cost burden, that the DIS module project is happening. We will let the performance aftermarket go for the performance enhancing products.

Re: Kickstarter suggestion
Jerrys Gaskets is a sole proprietorship, meaning I don't have partners to have to consult or communicate with about how their money is being spent, production schedules, design features, etc. Been there & done that during my real career. That's the way I would like to keep it.

We (Karen & I) retired several years ago & enjoy our freedom, such as it is. Simple is better for us, so taking on "partners" in development isn't in the cards. We have done a couple of advance "Group Buys" which in function perform like Kickstarter would with advance sales. Thanks for the suggestion though Dave.

In summary, it's the support generated by this ZR-1 Net Registry forum that has enabled Jerrys Gaskets to literally reach customers around the world. Thanks to everyone for all of your continuing support. :cheers:

Re: ECM And Ignition Module Availability/ replacement
 

Pretty amazing work Jerry!!!

Re: ECM And Ignition Module Availability/ replacement
 

PS: Maybe you can use your knowledge to address the V12 Mercedes coil issues.... $1000 per coil :(......lol

Re: ECM And Ignition Module Availability/ replacement
 

Jerry,

Your efforts are laudable and thank you for supporting the community this way. We are finally recognizing how critical the ICM is, something I have been harping about for some time now. My premise for asking about other options stems from my belief that the LT5 was clearly ahead of its time. We see that even now when fairly straightforward modification yields significant results in performance. It would be great to see how much better it would be adapting newer technology to an already outstanding engine.

Re: ECM And Ignition Module Availability/ replacement
 

Amazing that we have Jerrys support


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Re: ECM And Ignition Module Availability/ replacement
 

Don't feel defeated if a CNP(Coil Near Plug) like the GEN 3/4/5, the ignition setups that use an actual short spark plug wire. While there are benefits, they really don't show on the dyno over a multi coil setup.
On modified engines you might see single digit differences as compared with a single coil distributer equipped EFI setup like the 96-02 CSFI Vortec truck, which uses the same coil as the GEN 2 LT1/4/99 SBC, where the coil is seeing 8 times the duty cycle than a coil per cylinder ignition .

Great work!

Re: ECM And Ignition Module Availability/ replacement
 

Awesome Jerry.. looking forward to hearing more as you progress


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Re: ECM And Ignition Module Availability/ replacement
 

At Bloomington Gold I met Tom Chou. He indicated he was involved with electrical system testing on the ZR-1. I mentioned the difficult time we had finding replacement ECMs and DIS modules.


That reminded me of this thread. Unless I missed it, have you made any progress on your project Jerry? (And, thanks for the investment you're making for the rest of us)

Re: ECM And Ignition Module Availability/ replacement
 

Been a year since the last update. Any more progress on this?

Re: ECM And Ignition Module Availability/ replacement
 

I have been delaying my response to this thread, pending more information pertinent to the testing stage.

So far, so good with electronic testing of the DIS module software. The software handles I/O signals equating to 20,000 rpm +.

After some difficulty with engine harness connection to ECU communication, that situation has now been resolved and testing is progress towards physical operation with actual crank sensor trigger signal to ECU & DIS Module to fire spark plugs. This is the final test phase before installing the prototype DIS module in-car for real world, environmental testing.

Development has been slow but progress has been maintained, considering the scope & size of the project. The R&D scope for grass roots development has included sourcing unique connectors and packaging to make the new DIS Module a true, plug & play product. The size of the project relates to quantity & cost. If the application were for 100,000 units, solving unique manufacturing problems would be easier, but that's not the case. For the ZR-1/LT5, the limited production & associated market is small & costs have to be managed closely to keep it economically viable.

I have every confidence that this project will result in a more modern DIS module, that will be plug & play and most importantly feasible.

I would like to take this opportunity to thank Graham Behan for being the driving force behind this project. Without his continuing knowledge and willingness, this project would have never progressed beyond the idea stage. Our joint objective is to keep the LT5 viable for many years to come.

Re: ECM And Ignition Module Availability/ replacement
 

That is great to hear Jerry.. Glad progress is being made

Re: ECM And Ignition Module Availability/ replacement
 

Awesome! Sounds like things are coming together.

Re: ECM And Ignition Module Availability/ replacement
 

Sounds great and you are definitely dedicated.


Lou

Re: ECM And Ignition Module Availability/ replacement
 

Jerry, while you have always had my respect. I have to say you have gone above and beyond. As the kids say these days.... Repect, man, respect!
H
:cheers:

Re: ECM And Ignition Module Availability/ replacement
 

:cheers: and thank you.

Re: ECM And Ignition Module Availability/ replacement
 

Wow... thats great news. Maybe we can avoid being raped for NOS or even a used piece now. Your efforts are appreciated by me and many others who will eventually need a DIS replacement.
:saluting: