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#1 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 371
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Does anyone have a complete schematic for the ECU?
Trying to nail down an electronic issue. Thanks
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#2 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 371
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Since there hasn't been any response, I'll guess no one has an ECU schematic.
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#3 |
![]() Join Date: Aug 2010
Location: ottawa canada
Posts: 155
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What is the " electronic issue" you are chasing?
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#4 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 371
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Intermittent code 42. I've replaced everything in that circuit, but the problem continues.
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#5 |
![]() Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,144
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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#6 |
Join Date: May 2013
Location: Chicago
Posts: 977
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Did you recently pull the plenum?
http://www.zr1.net/forum/showthread.php?t=31249 I thought the ecm wiring is located in the shop manual.
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1993 ZR-1 #211 Yellow On Beige Beast #2 1992 ZR-1 #427 Black On Black *Sold* 1985 L98 Blue On Blue *Sold* |
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#7 |
![]() Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,144
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Wiring yes, I assumed he wanted an internal schematic for the ECM..
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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#8 | |
![]() Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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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. |
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#9 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 371
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Plenum pull will be the next step.
This problem first showed up sometime after my last plenum pull just before Carlisle. Code 42 started showing up a month after the Carlisle trip. Sometimes to won't set for a few days. Other times it sets several times a day. No real pattern. All cables checked, knock sensor and O2's replaced. Code shows with both stock chip and Mark's chip. Last things left are DIS module (I have a spare) or ECU (no spare - reason for needing internal schematic).
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige Last edited by Subfixer; 12-25-2019 at 10:50 AM. |
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