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Old 08-10-2018   #91
A26B
 
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Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by grahambehan View Post
All, we are now at a stage where we are completing the final stages of software development error checking and reporting communications between the ECU and the new DIS module, as to ignition status etc. The module hardware has already been tested with simulated crank sensor inputs and the next step is to fire coils with an actual crank sensor input, will provide pictures and hopefully video when this event occurs. After that we will be testing on actual engine/vehicle.

Regards

Graham
Thanks for posting Graham! !
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Jerry Downey
JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
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Old 08-10-2018   #92
jss06c6
 
Join Date: Aug 2015
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Default Re: ECM And Ignition Module Availability/ replacement

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Originally Posted by grahambehan View Post
I have heard that they have been reaching out to people that may be able to supply a dash and ccm for them to attempt to monitor coms and discover what the check sum and serial data packet responses are, not sure of progress.


Graham
I've spoken to both MS and Torqhead. I have given Matt at MS the contact info for Torqhead. He said they were going to reach out to them. I'll see MS again at PRI this winter and press again. MS has the engine end down pretty well and Torqhead has the CCM data stream figured out. Really wish they would get together and sell their info to the one that wants to take an LT-5 ECM into the market!

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Old 08-10-2018   #93
-=Jeff=-
 
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Default Re: ECM And Ignition Module Availability/ replacement

Jerry,

Thanks, I knew I was asking early.. I am sure you will do your best to meet the needs of owners
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1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Shelby Series 1 - Wilwood Brakes
Custom Interior
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Old 08-10-2018   #94
spork2367
 
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Default Re: ECM And Ignition Module Availability/ replacement

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Originally Posted by jss06c6 View Post
I've spoken to both MS and Torqhead. I have given Matt at MS the contact info for Torqhead. He said they were going to reach out to them. I'll see MS again at PRI this winter and press again. MS has the engine end down pretty well and Torqhead has the CCM data stream figured out. Really wish they would get together and sell their info to the one that wants to take an LT-5 ECM into the market!

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I have one of the megasquirt LT5 ECUs. I would love to be able to update it for full functionality.
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Old 08-10-2018   #95
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Default Re: ECM And Ignition Module Availability/ replacement

I like that TorqHead uses an OEM PCM, that gives us OBD2 functions/data
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1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Shelby Series 1 - Wilwood Brakes
Custom Interior
NCM Lifetime Member #978
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Old 09-04-2018   #96
grahambehan
 
Join Date: Feb 2013
Location: New Concord Kentucky
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Default Re: ECM And Ignition Module Availability/ replacement

Ignition module testing has now verified input and output signals to stock ecu with stock harness, picture attached.

Next to verify full range of ignition advance and retard per the limits in the 1995 calibration, using this because it is the maximum stock values.


Graham
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Old 09-04-2018   #97
-=Jeff=-
 
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Default Re: ECM And Ignition Module Availability/ replacement

Graham, is that big header connector readily available from somewhere? I am in need of one for a project
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1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Shelby Series 1 - Wilwood Brakes
Custom Interior
NCM Lifetime Member #978

Last edited by -=Jeff=-; 09-05-2018 at 09:12 AM.
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Old 09-04-2018   #98
PhillipsLT5
 
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Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by grahambehan View Post
Ignition module testing has now verified input and output signals to stock ecu with stock harness, picture attached.

Next to verify full range of ignition advance and retard per the limits in the 1995 calibration, using this because it is the maximum stock values.


Graham
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Old 09-04-2018   #99
Hib Halverson
 
Join Date: Jun 2005
Location: CenCoast California
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Default Re: ECM And Ignition Module Availability/ replacement

With all this discussion of the DIS module, if it were me, I still had Barney and its DIS still worked, I'd get the plenum off, remove the DIS module, clean any dirt/debris of it, spray the connector with contact cleaner, clean the mounting surfaces on the module and the plenum, then apply fresh dielectric grease per the service manual.

The grease is important because its how the module sheds heat to the plenum.

Hopefully the replacement DIS module project undertaken by Jerry and Graham is successful.
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former owner 95 VIN 0140
current owner 19 VIN 1878
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Old 09-05-2018   #100
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
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Default Re: ECM And Ignition Module Availability/ replacement

Hib,

Are u suggesting dielectric grease for mounting of ICM?
Its white heat sink grease. Just wanted to make sure that was clear.
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