LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Question from a obd1 noob

Thread Tools
 
Search this Thread
 
Old Feb 16, 2013 | 08:33 PM
  #1  
missinmym6's Avatar
Thread Starter
Teching In
 
Joined: Jul 2010
Posts: 17
Likes: 0
Default Question from a obd1 noob

OK, I know how to jump the two A and B ports to make the SES light flash. My question is how to read the flashes?? I can't seem to get it figured out. my car goes through the DLC process, then flashes six times pretty quickly. I read this as a 6 flash code. Am not waiting long enough for more flashes or what? Please help me out, car is running super rich and hits a wall at 3500rpm like its a rev limiter. On the highway it sometimes cuts out, and if you drop it in 3rd at 65 it completely bogs as though the motor completely dies.. I like my OBD2 so much better!
Reply
Old Feb 16, 2013 | 08:45 PM
  #2  
F0x Slaughter's Avatar
TECH Fanatic
 
Joined: Sep 2010
Posts: 1,037
Likes: 2
Default

So you don't know how to read Morse code?

Just sit there for a little bit.
Reply
Old Feb 16, 2013 | 09:17 PM
  #3  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

It won't work unless you have a 93 (you mention nothing of the car you're trying to do this on. The paperclip trick does NOT work on 94+ cars.

You can sit there all day and it won't do a damn thing.
Reply
Old Feb 16, 2013 | 09:55 PM
  #4  
F0x Slaughter's Avatar
TECH Fanatic
 
Joined: Sep 2010
Posts: 1,037
Likes: 2
Default

What year car does he have?

If its a 94+ you should be able to get a scanner and read it.
Reply
Old Feb 17, 2013 | 07:40 PM
  #5  
missinmym6's Avatar
Thread Starter
Teching In
 
Joined: Jul 2010
Posts: 17
Likes: 0
Default

Actually, I was just told wayyy wrong. I understand it now. It's giving a code 26. Which is reading out as a Quad Driver Module malfunction... Any thoughts on what that is exactly? I've actually never herd of a QDM malfunction. Thanks for the help.
Reply
Old Feb 17, 2013 | 09:44 PM
  #6  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Default

Since you are reading flashes, we have to assume you are working on a 1993 (don't know why you can't give that info up front).

These are the things that a code 26 can be on a 93:

Quad-Driver Module (QDM) #1 circuit
applies to:
- AIR pump relay circuit
- EGR solenoid
- EVAP solenoid
Reply
Old Feb 18, 2013 | 04:57 PM
  #7  
missinmym6's Avatar
Thread Starter
Teching In
 
Joined: Jul 2010
Posts: 17
Likes: 0
Default

(don't know why you can't give that info up front).

Actually, I thought I had the car in my sig. But obviously I was wrong, I forgot I erased it back when I traded the car off the first time around. Sorry about that. YES the car is a 93 motor/trans/ecm. 94 body. Anyways. Thanks for the info. I'll start looking into that stuff more.
Reply
Old Feb 18, 2013 | 06:50 PM
  #8  
Ed Wright's Avatar
9-Second Club
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,397
Likes: 9
From: Tulsa, OK
Default

1993 Quad driver codes often refer to missing relays, like EGR, EVAP, AIR pump relay, etc.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 12:32 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE