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

How to test injector driver?

Old Mar 28, 2013 | 02:38 PM
  #1  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default How to test injector driver?

Hey guys i need to find out my dtc 18 still and its killing me. I looked at all my injector wires they dont look cracked or damaged. Can someone pls help me with my problem.
Reply
Old Mar 28, 2013 | 03:38 PM
  #2  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,144
Likes: 61
From: Little Rock, AR
Default

You should use a meter to check the integrity of the wires. You can also check the resistance of the injectors (should be ~12 ohms). I would suspect something in the PCM last.
Reply
Old Mar 28, 2013 | 04:32 PM
  #3  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default

all pink wires have 12v, and all injectors have 12.8 ohms. So i pulled my wire harness out and seperated all of the injector wires from the harness to further inspect cracks or slices in the wire and everything looks good.
Reply
Old Mar 28, 2013 | 04:37 PM
  #4  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,144
Likes: 61
From: Little Rock, AR
Default

Did you meter all the ground wires going back the PCM? (test continuity with PCM unplugged and meter leads at PCM connector and injector connector)
Reply
Old Mar 28, 2013 | 04:52 PM
  #5  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default

ok a little confused. How do i test the ground wires going to pcm?
Reply
Old Mar 28, 2013 | 06:40 PM
  #6  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default

ok so i ohmd the wires from injector connector to pcm connector and i get 2.0-1.9 on all of the injector connectors. Is that ok???
Reply
Old Mar 28, 2013 | 08:52 PM
  #7  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default

Bump!
Reply
Old Mar 28, 2013 | 09:16 PM
  #8  
Ed Wright's Avatar
9-Second Club
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,397
Likes: 9
From: Tulsa, OK
Default

I always use a Fluke 98A digital storage lab 'scope to check the wave form. Check a couple of good ones for a reference. Back probe the ground side and ground the 'scope's ground lead to Batt -.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Mar 31, 2013 | 05:00 PM
  #9  
teal94z281989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 111
Likes: 0
From: honey brook,pa
Default

I've never used one before and they seem to be pretty expensive. is there any other test I can do to the wiring harness? I think its one of my injector pig tales that are messed up
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:05 AM.

story-0
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-1
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-2
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-3
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
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE