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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

89,377

Normal Threads

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

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1 2)

82-T/A on May 31, 2026

Today 07:52 AM
by 82-T/A

25

551

1986 Doug Nash 4+3 help needed

tanner01nelson on May 8, 2026

Today 04:36 AM
by tequilaboy

7

511

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

veiloctane on Oct 3, 2025

Today 04:30 AM
by tequilaboy

18

884

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

Volodaka on May 26, 2026

Today 03:28 AM
by Volodaka

12

753

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

icsamerica on Yesterday

Today 12:26 AM
by icsamerica

2

179

Bad TPS?

Brockron on Jun 6, 2026

Yesterday 11:59 PM
by VikingTrad3r

9

188

Modernizing the C4, Another LS Swap with Goodies

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1 2)

ThatOneKid on Jan 17, 2026

Yesterday 09:43 PM
by ThatOneKid

25

2,993

R12 Freon , How do I know its real

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1 2)

steve40th on Jun 4, 2026

Yesterday 09:25 PM
by steve40th

28

584

Throttle Body Replacement

DJJ123 on Jun 10, 2025

Yesterday 09:24 PM
by steve40th

13

770

Road Race C4

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1 2)

icsamerica on Jan 6, 2024

Yesterday 07:46 PM
by icsamerica

27

2,052

ECM help please

Kennymc on Yesterday

Yesterday 04:42 PM
by Kennymc

0

59

Tuning/ ECU question

Canyon.C5 on Yesterday

Yesterday 04:17 PM
by Canyon.C5

6

152

1994 corvette LT1 evap c26 code

Kennymc on Yesterday

Yesterday 02:27 PM
by Kennymc

0

61

84' Cruise Control Wont Engage

ItzJack48 on Jun 5, 2026

Yesterday 12:54 PM
by 84 4+3

5

182

Best Route to achieve 500 WHP

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1 2)

Gmroberts11 on Jun 2, 2026

Yesterday 07:58 AM
by AGENT 86

24

943

Looking for ECM Information

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1 2)

CorvetteRules on May 27, 2026

Jun 6, 2026 09:39 PM
by CorvetteRules

23

704

84 Fuel Pressure Bleed Off

84C4Tom on Jan 14, 2025

Jun 6, 2026 06:43 PM
by 82-T/A

6

531

Help/Advice on LT4 Heads/Cam Package

skorpion317 on Jun 2, 2026

Jun 6, 2026 05:57 PM
by 95wht6spd

7

343

Experience with Gates water pump for L98

C4industries on May 27, 2026

Jun 6, 2026 05:52 PM
by C4industries

1

224

lt4 knock module

merim123 on Jun 5, 2026

Jun 6, 2026 03:17 PM
by 96 lt-4

2

152

Can't diagnose this rattling noise (Video)

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1 2)

Need4Sneed on Mar 4, 2026

Jun 6, 2026 02:56 PM
by Need4Sneed

20

1,268

Had a good Dyno Day yesterday.

Gale Banks 80' on Jun 6, 2026

Jun 6, 2026 02:25 PM
by Gale Banks 80'

2

138

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

standswithabeer on Jun 5, 2026

Jun 5, 2026 10:52 PM
by old stingray

3

164

52, 52mm, 92, air, body, c4, cleaner, corvette, duct, intack, intake, l98, mm, smooth, throttle, tpi

52mm throttle body air intake duct

MikeDrum2112 on Nov 16, 2004

Jun 5, 2026 04:34 PM
by Vince TT

19

3,452

Rear wheel bearings ?

Torqsplit on Apr 23, 2026

Jun 5, 2026 02:31 PM
by ACMX92

12

652

Early 85 no crank!

Ham_monster on Jun 4, 2026

Jun 5, 2026 08:57 AM
by pltmgr

2

140

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 5, 2026 05:33 AM
by ARTHIMOUS

30

18,768

Attaching an LS to the C4 ZF 6-Speed?

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1 2)

pointvette on Feb 15, 2022

Jun 4, 2026 10:22 PM
by C4.choppa

35

16,044

1988, 34, buried, c4, clutch, corvette, cylinder, hyd, inch, moves, pedal, removal, rod

88 clutch pedal

Red88Vette on Aug 20, 2011

Jun 4, 2026 08:57 PM
by dah2001

18

9,544

can't shift into 1st or 2nd

racingwiththewind on Jul 14, 2025

Jun 4, 2026 02:12 PM
by racingwiththewind

14

672

84' Vacuum line help

Realfast86 on May 10, 2026

Jun 4, 2026 12:50 PM
by Realfast86

15

583

85, bias, brake, c4, c5, c6, corvette, drm, drms, instal, install, installing, removal, spring

DRM brake bias spring install?

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1 2)

myscx on Jun 1, 2003

Jun 4, 2026 11:48 AM
by KTLarry

27

9,244

Electrical issue

GregVetteC4 on Jun 3, 2026

Jun 4, 2026 07:43 AM
by GregVetteC4

6

212

1984 Crossfire keeps stalling at low speed

Amsi10 on Jun 3, 2026

Jun 4, 2026 07:00 AM
by ex-x-fire

5

155

Power door locks not working

Bugly87 on May 2, 2026

Jun 4, 2026 06:53 AM
by Natty C

10

641

1989, 87, belobrajdic, bill, convertible, corvette, how, httpwwwlabibcomc4manualpdf, install, installation, northern, replace, to, top, va, video

Convertible top install on a 1989

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1 2 3 ... Last Page)

10.5Vette on Jan 9, 2008

Jun 3, 2026 10:35 PM
by hueburt55

62

16,615

96 LT4 Coupe - Driveline vibration 65+MPH

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1 2 3)

Steinburger on May 29, 2025

Jun 3, 2026 10:25 AM
by 1993C4LT1

46

2,349

1986 Corvette mass air flow sensor burn off

Hobojoe on Apr 28, 2026

Jun 3, 2026 03:03 AM
by tequilaboy

7

445

Fabrication Blueprint C1/C4 suspension

zmotorhead123@gmail on May 27, 2026

Jun 2, 2026 08:25 PM
by zmotorhead123@gmail

3

269

Not enough fuel pressure

Jcruz679 on May 31, 2026

Jun 2, 2026 06:43 PM
by Magnet

2

274

1986 Corvette code 33 and limp mode

Hobojoe on Jun 2, 2026

Jun 2, 2026 05:05 PM
by Hobojoe

0

122

How to Test ABS Relay (the one w/the diodes) '86 Vert

standswithabeer on May 26, 2026

Jun 2, 2026 12:57 PM
by drive it

4

277

Alignment shops in New England

criceo on May 27, 2026

Jun 2, 2026 08:25 AM
by jmgtp

3

202

T56 Magnum F C Beam Adapter

Thatlsc4 on Jun 4, 2025

Jun 2, 2026 03:34 AM
by Volodaka

2

493

A/c compressor not getting 12v

PpStrangler on May 27, 2026

Jun 1, 2026 11:17 PM
by PpStrangler

3

283

0-60 in 4.8, how accurate are those phone apps?

94c4562 on May 15, 2019

Jun 1, 2026 05:11 PM
by tonymontana111

16

14,348

Rear main seal RTV question - minor leak after reseal

txmtxm999 on Jun 1, 2026

Jun 1, 2026 02:23 PM
by 81c3

1

165

Power seat rebuild

Badcarr on May 28, 2026

Jun 1, 2026 11:00 AM
by 86C4vert

14

449

Help please

Chalupabatman11 on May 31, 2026

Jun 1, 2026 08:37 AM
by AGENT 86

5

292

Intermittent No Start..at wits end

canucklehead2004 on May 25, 2026

Jun 1, 2026 06:16 AM
by Jons90conv

8

360

1989 Drivers Knee Bolster

Red89'-L98 on Jun 1, 2026

Jun 1, 2026 02:23 AM
by Red89'-L98

0

136

1989 wide band

the blur on May 20, 2026

May 31, 2026 01:04 PM
by drive it

8

463

I finally built an exhaust for this thing.

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1 2)

wolf_walker on May 14, 2026

May 31, 2026 12:10 PM
by wolf_walker

21

893

Vibration - help

ChevyGirl0027 on May 26, 2026

May 31, 2026 06:54 AM
by Nexxussian

9

468

C4 Diff repair options

IJc4vette on May 27, 2026

May 31, 2026 05:25 AM
by Schieby

12

463

1989 Fuel Sending Unit

Geo153 on May 29, 2026

May 30, 2026 10:13 PM
by Geo153

2

231

1984 ram air?

stick105 on Dec 6, 2008

May 30, 2026 09:13 PM
by 82-T/A

10

1,464

Heads and cam With Crossfire intake

C4 Jeff on May 30, 2026

May 30, 2026 06:35 PM
by racerxl83

3

179

-89 Lingenfelter running real bad, ECU?

pierrel on May 17, 2026

May 30, 2026 05:57 PM
by steve40th

15

603

84 corvette carb swap

Thatpurple84 on May 29, 2026

May 30, 2026 05:13 PM
by Krusty84

1

220

Hard starting

David Cannistraro on May 25, 2026

May 30, 2026 04:50 PM
by signify

2

236

ECM issues?

emileefh01 on May 22, 2026

May 30, 2026 04:49 PM
by signify

2

307

1992 Corvette LT1 – Intermittent dash failure + no crank + runs on spray… need expert

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1 2 3)

Zeekster on Mar 27, 2026

May 30, 2026 12:24 PM
by Zeekster

44

1,955

Headers vs stock manifolds?

Realfast86 on May 29, 2026

May 30, 2026 12:17 PM
by mike1111

4

308

Early C4 Steering rack replacement options in 2026

Squag27 on May 29, 2026

May 30, 2026 11:47 AM
by AZSP33D

3

278

Did full tune up, now has a stumble

ButchN on May 16, 2026

May 30, 2026 10:56 AM
by ButchN

9

523

Racetronix fuel pump wiring harness install

blackozvet on Sep 23, 2022

May 30, 2026 09:39 AM
by Corvettedisappointed

19

3,898

SPC Upper Contorl Arms Setup

criceo on May 27, 2026

May 29, 2026 10:31 PM
by criceo

5

321

Distributor Not Seating

criceo on May 24, 2026

May 29, 2026 10:13 PM
by criceo

15

518

Dakota Digital SGI-100BT Wiring with T56

Squag27 on May 29, 2026

May 29, 2026 09:49 PM
by Squag27

1

158