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<*> The Official DIY, Tech Tips, FAQ and where did my sticky go?? Thread UPDATED!!

pewter99 on Apr 19, 2011

Nov 4, 2023 11:41 AM
by HudsonFruechting

19

89,434

Normal Threads

Subject: EGR & 9th Injector Delete – Spark Table Advice for EM6870 BIN?

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1 2 3)

veiloctane on Oct 3, 2025

Today 10:35 PM
by tequilaboy

50

1,542

New Member and Vette Owner from Alabama

SBellew on Today

Today 10:26 PM
by Gixxerman

2

3

Yet another IAT sensor thread

gh0stmach1ne on Today

Today 10:13 PM
by Tunedperformancedotorg

7

93

Oil question

merc49 on Today

Today 09:57 PM
by merc49

0

1

Lt1 Intake Swap Tuning Question

BenDL on Today

Today 09:26 PM
by ULTM8Z

14

154

93 shuts off while driving.

Polo Vert on Jun 15, 2026

Today 08:43 PM
by Polo Vert

4

132

1985 corvette starts then soon dies

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1 2)

coothethird on Aug 31, 2016

Today 07:12 PM
by coothethird

26

3,991

Youtube'r known for bespoke exhausts loses power on a C4

icsamerica on Jun 7, 2026

Today 07:03 PM
by coothethird

11

609

Help with a 1984 CFI that doesn't run! :)

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1 2)

82-T/A on May 31, 2026

Today 06:01 PM
by JoBy

37

1,103

Front crossmember bolts question

Limp on Today

Today 10:48 AM
by Limp

0

67

Electrical problems: Wiper,seats,power windows

CorvetteMan_94 on Today

Today 09:31 AM
by CorvetteMan_94

0

55

91 L98 ARP Intake Manifold Bolts

hgoodwiniii on Jun 8, 2026

Today 08:30 AM
by C409

5

303

Removing Upper Control Arm Bushings

criceo on Yesterday

Today 05:21 AM
by ramahon

4

163

1992 LT1 rev limiting 3000 rpms

AndrewCurtis on Yesterday

Today 02:02 AM
by icsamerica

2

130

1990 Possible EGR Issue

XR_Strider_GuY on Oct 19, 2017

Yesterday 10:58 PM
by veiloctane

15

3,316

Brake Indicator on Dash Issues

92pologreen on Yesterday

Yesterday 09:27 PM
by 92pologreen

2

92

R134 conversion

BET VETTE on Jun 10, 2026

Yesterday 06:42 PM
by bajasam

9

424

1996 C4 HVAC Code 01 - Both Original and New Actuators Only Twitch

Wii on Yesterday

Yesterday 05:47 PM
by Wii

0

44

Tuned performance introduction

Tunedperformancedotorg on Jan 26, 2026

Yesterday 04:55 PM
by Tunedperformancedotorg

10

1,148

90 l98 crank no start

BoatsIsBad on Feb 27, 2026

Yesterday 04:47 PM
by meaty_MEAT

11

580

1986, 96, c4, cable, corvette, hod, hood, installed, problem, problems, release, replace, wont, work

c4 hood release cable installation

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1 2)

wa4ky on Apr 15, 2012

Yesterday 02:58 PM
by Natty C

20

14,441

VATS bypass

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1 2)

AgentEran on Oct 5, 2021

Yesterday 01:15 PM
by Tunedperformancedotorg

27

12,826

School me on correct wheel balancing

1cuda on Yesterday

Yesterday 01:01 PM
by 1cuda

7

181

lt4 knock module

merim123 on Jun 5, 2026

Yesterday 12:18 PM
by bajasam

5

365

84 - Will start but immediately dies

CO-84Vette on Jun 10, 2026

Yesterday 11:18 AM
by K87ZZ4

12

367

Not enough fuel pressure

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1 2)

Jcruz679 on May 31, 2026

Yesterday 07:55 AM
by AGENT 86

22

750

Who makes LS swap headers for a C4

bjankuski on May 22, 2026

Yesterday 07:11 AM
by bjankuski

11

524

Headlight Motor brushing

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1 2)

BET VETTE on Apr 2, 2026

Jun 15, 2026 06:24 PM
by BET VETTE

21

673

AC Clutch shims

Brandon's Z on Jun 13, 2026

Jun 15, 2026 05:18 PM
by steve40th

3

178

R12 Freon , How do I know its real

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1 2 3)

steve40th on Jun 4, 2026

Jun 15, 2026 02:49 PM
by steve40th

46

1,444

1992 Corvette Speed sensor automatic

c4reed on Jun 12, 2026

Jun 15, 2026 01:29 PM
by c4reed

3

190

16045121, 96, bypass, c6, corvette, diagram, input, located, module, pin, shecmatic, signal, tantalum, vats, wire

VATS Module Schematic

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1 2)

Cliff Harris on Dec 2, 2011

Jun 15, 2026 12:23 PM
by Tunedperformancedotorg

33

18,941

My 2nd C4, from an 84 disaster- to a nice 85

EpicTech on Mar 27, 2026

Jun 15, 2026 11:47 AM
by EpicTech

16

948

Denso Starter Parts Supplier

Gale Banks 80' on Jun 8, 2026

Jun 15, 2026 10:13 AM
by Gale Banks 80'

4

270

How I lowered the stock driver seat in my 86 convertible

born in flint on Jun 15, 2026

Jun 15, 2026 08:18 AM
by 81c3

1

126

Trouble Removing ZF6 Transmission

Paul8369 on Jun 14, 2026

Jun 15, 2026 12:30 AM
by Gale Banks 80'

3

171

Unusual wiper issue

BowtieTime on Jun 14, 2026

Jun 14, 2026 05:53 PM
by BowtieTime

2

170

I think I need a brake master cylinder

Impala Balko on Jun 10, 2026

Jun 14, 2026 07:16 AM
by pltmgr

15

395

Looking for ECM Information

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1 2)

CorvetteRules on May 27, 2026

Jun 13, 2026 11:59 PM
by CorvetteRules

34

1,056

1986 L98 Idle Issue With MAF Connected

Managed on Jun 12, 2026

Jun 13, 2026 07:49 PM
by Managed

11

243

L98 Dies at Idle but Only in Reverse

Red89'-L98 on Oct 10, 2025

Jun 13, 2026 06:40 PM
by Red89'-L98

6

442

LT1 Harmonic Damper Removal Question

steve40th on Jun 10, 2026

Jun 13, 2026 07:55 AM
by steve40th

6

317

Removing Hypertech Module (and 02 Sensor Help)

NAIRU on Jun 13, 2026

Jun 13, 2026 02:10 AM
by NAIRU

0

165

%TPS for PE

jmgtp on Jun 11, 2026

Jun 12, 2026 08:55 PM
by bjankuski

11

319

1984 Crossfire Wiring ID help

therunningwrench on Jun 11, 2026

Jun 12, 2026 07:23 PM
by mike1111

1

196

Need help with a 1994 Sport Seat Issue

LT1Roadster on Jun 12, 2026

Jun 12, 2026 10:20 AM
by LT1Roadster

0

127

Options for ZF6 single mass flywheel

Need4Sneed on Jun 10, 2026

Jun 12, 2026 09:23 AM
by XLR8-R

1

227

What is the deal with the moaning/vibrating AC compressor?

wolf_walker on Jun 12, 2026

Jun 12, 2026 01:53 AM
by wolf_walker

0

210

Body Dolly

Corvettes White on Jun 10, 2026

Jun 11, 2026 09:27 PM
by Corvettes White

2

241

87 dana 44 spider gears

premiervette on Jun 10, 2026

Jun 11, 2026 11:18 AM
by WVZR-1

4

301

Had a good Dyno Day yesterday.

Gale Banks 80' on Jun 6, 2026

Jun 11, 2026 07:29 AM
by bjankuski

9

541

ECM help please

Kennymc on Jun 7, 2026

Jun 10, 2026 07:50 PM
by stew86MCSS396

1

245

RD Racing camber brace

steve40th on Sep 21, 2025

Jun 10, 2026 04:17 PM
by BET VETTE

11

644

1992 A/C Clutch Question

topfuel67 on Jun 9, 2026

Jun 10, 2026 10:03 AM
by topfuel67

2

200

GPS Speed sensor instead of VSS guide

Volodaka on Jun 9, 2026

Jun 10, 2026 06:12 AM
by Phobos84

5

317

Using a/c condenser as a radiator to cool down water on an air to water i

dizwiz24 on Jun 9, 2026

Jun 9, 2026 10:54 PM
by dizwiz24

2

310

Camber Brace Dimensions

deradej on Mar 11, 2020

Jun 9, 2026 08:40 PM
by Magnet

1

894

Normal?

Blu89C4 on Jun 9, 2026

Jun 9, 2026 08:27 PM
by Blu89C4

8

372

C4 and using 2016-2020 Cadillac calipers

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1 2)

Big_Philly94’Vette on Jan 5, 2025

Jun 9, 2026 06:39 PM
by Chumbini

25

2,588

Corvette C4 1984 Manual Swap with BMW GS6-37DZ (also works with any SBC gen 1)

Volodaka on May 26, 2026

Jun 9, 2026 03:24 PM
by MrBigDee

16

1,077

What can I Expect after Replacing a Locked Up/Smoking Starter and Solenoid?

standswithabeer on Jun 5, 2026

Jun 9, 2026 02:10 PM
by standswithabeer

5

339

1990-1996 Solar (Sun Load) Temperature Sensor

Kopbet1976 on Jul 19, 2023

Jun 9, 2026 11:51 AM
by ZBrink

3

1,220

Do You Have Rear Defrost Wire To Strut/Glas OEM Pics and What Gauge Wire Replacement?

colter on Jun 8, 2026

Jun 8, 2026 09:56 PM
by colter

0

213

Best Route to achieve 500 WHP

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1 2)

Gmroberts11 on Jun 2, 2026

Jun 8, 2026 07:46 PM
by Phobos84

27

1,384

Gotta love the first nitrous tank of the season

Phobos84 on Jun 8, 2026

Jun 8, 2026 06:25 PM
by Phobos84

2

232

1986 Doug Nash 4+3 help needed

tanner01nelson on May 8, 2026

Jun 8, 2026 04:36 AM
by tequilaboy

7

613

Bad TPS?

Brockron on Jun 6, 2026

Jun 7, 2026 11:59 PM
by VikingTrad3r

9

370

Modernizing the C4, Another LS Swap with Goodies

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1 2)

ThatOneKid on Jan 17, 2026

Jun 7, 2026 09:43 PM
by ThatOneKid

25

3,175

Throttle Body Replacement

DJJ123 on Jun 10, 2025

Jun 7, 2026 09:24 PM
by steve40th

13

828

Road Race C4

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1 2)

icsamerica on Jan 6, 2024

Jun 7, 2026 07:46 PM
by icsamerica

27

2,204