Repairing DIS Module? - ZR-1 Net Registry Forums

FormulaReed · 11-16-2019

When my car was dead, I feared that the DIS module was the culprit. Turns out that I had a dead fuel pump...

However, when I was looking for one, I found a place called G7 computers that rebuilds automotive ECUs. I sent them a message asking if they could repair the DIS module in my 1991 ZR1 and I got a message back that they can repair them and they would charge me $225 for it. I was kinda shocked because I was under the impression that they were not repairable.

My first question is: Has any one tried sending on to them? Second: Any one have a dead one sitting around? I'm game to send out out and see if they can indeed fix it. They said that if they can't they will send it back no charge.

Cheers,

Reed

XfireZ51 · 11-17-2019

Quote:

Originally Posted by FormulaReed

When my car was dead, I feared that the DIS module was the culprit. Turns out that I had a dead fuel pump...

However, when I was looking for one, I found a place called G7 computers that rebuilds automotive ECUs. I sent them a message asking if they could repair the DIS module in my 1991 ZR1 and I got a message back that they can repair them and they would charge me $225 for it. I was kinda shocked because I was under the impression that they were not repairable.

My first question is: Has any one tried sending on to them? Second: Any one have a dead one sitting around? I'm game to send out out and see if they can indeed fix it. They said that if they can't they will send it back no charge.

Cheers,

Reed

My suspicion is that they’ve never seen one.

FormulaReed · 11-17-2019

Perhaps. But there gig is fixing automotive electronics. If I had a dead dis module, I’d send it to them and see what happens. If they can’t fix it, no charge. Worst case you loose the shipping cost. Even if you get charged the $225 plus shipping and it comes back non op it seems like a worth while gamble.

Seems like it’s worth the gamble. If mine was dead or I had a dead one, I’d give it a shot.

Paul Workman · 11-17-2019

I seem to recall that all or portions of that module is POTTED. If so, that would throw a wrench in plans to have it serviced.

Last I heard, Jerry Downey (Jerry's Gaskets) was working on providing remanufactured DIS modules. Maybe he can enlighten us a bit?

LGAFF · 11-17-2019

The potting material is not unique to the LT5 ignition system, V12 Mercedes have a Transformer and 2 ignition coil systems with 12 coils per side …. they are imbedded in potting material but are rebuildable... so that shouldn't be an obstacle.

Ccmano · 11-17-2019

If we presume they can repair a DIS unit, it implies they can test it as well. I don’t think I’ve ever heard of anyone that can bench test one. Do I have that right?
H

XfireZ51 · 11-18-2019

Hib Halverson · 12-02-2019

I agree, I'll have some

, too.

rkreigh · 12-03-2019

for the price of one of these DIS modules used you can buy a MS3 pro and have some change left over for install

not a trivial conversion, but it provides much faster and fully tunable ecm, coil on plug, and wide band

I'm tempted, I have a good use DIS module and the engine apart

matt101590 · 08-31-2020

Have any developments been made in repairing the Ignition Module or is my car a "paperweight" as someone put it. I am hoping ill hear my LT5 run again but everything i read says this is dame near impossible to get around.

11-16-2019	#1
FormulaReed Join Date: Jan 2019 Location: Seattle Posts: 62	Repairing DIS Module? When my car was dead, I feared that the DIS module was the culprit. Turns out that I had a dead fuel pump... However, when I was looking for one, I found a place called G7 computers that rebuilds automotive ECUs. I sent them a message asking if they could repair the DIS module in my 1991 ZR1 and I got a message back that they can repair them and they would charge me $225 for it. I was kinda shocked because I was under the impression that they were not repairable. My first question is: Has any one tried sending on to them? Second: Any one have a dead one sitting around? I'm game to send out out and see if they can indeed fix it. They said that if they can't they will send it back no charge. Cheers, Reed

11-17-2019	#3
FormulaReed Join Date: Jan 2019 Location: Seattle Posts: 62	Re: Repairing DIS Module? Perhaps. But there gig is fixing automotive electronics. If I had a dead dis module, I’d send it to them and see what happens. If they can’t fix it, no charge. Worst case you loose the shipping cost. Even if you get charged the $225 plus shipping and it comes back non op it seems like a worth while gamble. Seems like it’s worth the gamble. If mine was dead or I had a dead one, I’d give it a shot.

11-17-2019	#4
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Repairing DIS Module? I seem to recall that all or portions of that module is POTTED. If so, that would throw a wrench in plans to have it serviced. Last I heard, Jerry Downey (Jerry's Gaskets) was working on providing remanufactured DIS modules. Maybe he can enlighten us a bit? __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

11-17-2019	#5
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Repairing DIS Module? The potting material is not unique to the LT5 ignition system, V12 Mercedes have a Transformer and 2 ignition coil systems with 12 coils per side …. they are imbedded in potting material but are rebuildable... so that shouldn't be an obstacle. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

11-17-2019	#6
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Repairing DIS Module? If we presume they can repair a DIS unit, it implies they can test it as well. I don’t think I’ve ever heard of anyone that can bench test one. Do I have that right? H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

11-18-2019	#7
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,697	Re: Repairing DIS Module? __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

12-02-2019	#8
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	Re: Repairing DIS Module? I agree, I'll have some , too. __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878

12-03-2019	#9
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,087	Re: Repairing DIS Module? for the price of one of these DIS modules used you can buy a MS3 pro and have some change left over for install not a trivial conversion, but it provides much faster and fully tunable ecm, coil on plug, and wide band I'm tempted, I have a good use DIS module and the engine apart __________________ 95 390 LPE ZR1 (505 rwhp) LSV = Lingenfelter Super Vette Twin Turbo 2003 Z06 (800 RWHP)

08-31-2020	#10
matt101590 Join Date: Sep 2019 Location: pawtucket RI Posts: 15	Re: Repairing DIS Module? Have any developments been made in repairing the Ignition Module or is my car a "paperweight" as someone put it. I am hoping ill hear my LT5 run again but everything i read says this is dame near impossible to get around.