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Old 02-24-2018   #11
XfireZ51
 
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Doubtful Hans given that the L83 and L98 were iron blocks and ours of course is aluminum/open deck. Not to mention the valvetrain noise. Frequency filtering would be different.
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Old 02-24-2018   #12
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

I am sure they are different in some way.
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Old 02-24-2018   #13
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Yep the form factor is identical however there is an internal reason why the Part numbers are different as the 90 ZR-1 has its own part number. GC
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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 02-24-2018   #14
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Quote:
Originally Posted by GOLDCYLON View Post
While almost everybody knows about the ECM and the DIS that are failure points along the entire model run I propose that I have stumbled upon a MY 90 potential problem area that I was completely unaware of. While I am fairly knowledgeable about ZR-1s I will be the first to tell you I know several members in the community that have probably forgotten more than I will ever know lol.



The ESC is also called the electronic knock module. It provides an modular interface between the knock sensor and the ECM.



Just my thoughts your mileage may vary. GC

I might add one other item that can fail

I would say Fuel Pressure Regulator (FPR)......and yes.....your milesge will vary when you start sucking raw fuel into plenum when the FPR fails


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Old 02-24-2018   #15
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Mechanical issues have had “work arounds” and adaptations but when it comes to electronics we are in a totally different realm.
Let me just add that this is the type of initiative the Registry needs to be more pro-active in to fulfill our mission statement of “Keeping the Legend Alive”.
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Old 02-24-2018   #16
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Quote:
Originally Posted by XfireZ51 View Post
Mechanical issues have had “work arounds” and adaptations but when it comes to electronics we are in a totally different realm.
Let me just add that this is the type of initiative the Registry needs to be more pro-active in to fulfill our mission statement of “Keeping the Legend Alive”.
Concur. I know Jerry is working on a solution for the DIS on his own dime and we would be in a real hurt lock real quick if folks like Phil had not put together a solution for the fuel pressure regulator. I had a good discussion with Dom last night with electronics we are all on borrowed time. Even having a replacement used part on hand is not a long term solution. It is concerning. GC
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GOLDCYLON - 11 CTS-V


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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V

Last edited by GOLDCYLON; 02-24-2018 at 06:09 PM.
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Old 02-24-2018   #17
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

It also looks like somebody took my advise and bought that module on EBay.

I hope it went to a club member as I did not put this info out on Corvette Forum. GC
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GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 02-24-2018   #18
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Yes it did and thanks! I have been meaning to pick one up for a while and you reminded me. I have never heard of one of these going bad but you nene know.
Rich
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Old 02-24-2018   #19
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Default Re: Electronic Spark Module ... future MY 90 Achilles Heel?

Doing a little research over on Corvette Forum in the C4-Tech-Performance (not ZR-1) section. It appears that 16080211 is the Knock module for all 90’s not just the Z.

Does anyone have a parts cross reference to confirm this?

Check out the last post in this ancient thread.

https://www.corvetteforum.com/forums...dule-part.html

This exact reference comes up in a number of threads with regard to “false knock “ in L98’s.
“The part numbers for different years are:
'85-'86 p/n 16022621 - New p/n 16126761
'87-'89 p/n 16052401 - New p/n 16038331
'90 p/n 16080211”

H
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Old 02-24-2018   #20
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Default Electronic Spark Module ... future MY 90 Achilles Heel?

I will check a 1990 (L98) tomorrow for knock module. Pete should also have one on that 1990 Z he is parting
out.


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Last edited by Dynomite; 02-24-2018 at 10:47 PM.
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