Electronic Spark Module ... future MY 90 Achilles Heel? - Page 2 - ZR-1 Net Registry Forums

XfireZ51 · 02-24-2018

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.

-=Jeff=- · 02-24-2018

I am sure they are different in some way.

GOLDCYLON · 02-24-2018

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

Dynomite · 02-24-2018

Quote:

Originally Posted by GOLDCYLON

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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XfireZ51 · 02-24-2018

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”.

GOLDCYLON · 02-24-2018

Quote:

Originally Posted by XfireZ51

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

GOLDCYLON · 02-24-2018

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

Scrrem · 02-24-2018

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

Ccmano · 02-24-2018

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

Dynomite · 02-24-2018

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

Sent from my iPhone using ZR-1 Net Registry

02-24-2018	#11
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,667	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. __________________ [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

02-24-2018	#12
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,132	Re: Electronic Spark Module ... future MY 90 Achilles Heel? I am sure they are different in some way. __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

02-24-2018	#13
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	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 __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) 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

02-24-2018	#15
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,667	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”. __________________ [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

02-24-2018	#17
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	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 __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) 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

02-24-2018	#18
Scrrem Join Date: Feb 2009 Location: Alexandria, Virginia Posts: 1,469	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 __________________ 1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member

02-24-2018	#19
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	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 __________________ 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.

02-24-2018	#20
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,788	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. Sent from my iPhone using ZR-1 Net Registry __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 02-24-2018 at 09:47 PM.