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

Ford 24# Injectors.. no pulse??

Thread Tools
 
Search this Thread
 
Old May 6, 2008 | 10:50 PM
  #1  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default Ford 24# Injectors.. no pulse??

I just received my ford racing 24# injectors and installed them. The reason why I bought them was because one of my Accel injectors went bad, so I bought another one to replace it, and two more went bad, so i said ef it, and bought these. I put them in and right away i touched the injectors where the previous failed ones were, and they were pulsing, so that eliminates any doubt of a wiring issue (this was clearly an injector defect with Accel). So im feeling all the injectors as the car is running and they are all ticking/pulsing.. until i reached the last two. Two of them (passenger side towards the back of the motor - not sure which cylinders those are), were not pulsing. So $$$ later, and im back at a 6cyl LT1... I bought them from Blue Oval Industries, and I was reading their policies, and it says no installed items can be returned. Well wtf.. two of the injectors they sent me are defected. What do you guys think I should do? Im going to give them a call tomorrow and see whats going on, if they can replace them. In the meanwhile, would it be a good idea to take those two out and put in 2 working Accel injectors? Im so frustrated at this point its rediculous
Reply
Old May 7, 2008 | 11:11 AM
  #2  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

I just swaitched the two that didnt work on the pass. side with the ones that did work on the pass. side to see if the problem follows those injectors, and now NONE of the injectors on the pass. side of the intake are ticking/pulsing. Question, if I can't physically feel them vibrate/tick, does that mean it's not pulsing? Because all of the injectors on the driver side are vibrating hard, and you can feel them.
Reply
Old May 7, 2008 | 11:27 AM
  #3  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

Start looking for an intermittent wiring problem.

What year is the car?? I ask becaue 93s are batch fire, 94+ sequential.
Reply
Old May 7, 2008 | 11:43 AM
  #4  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

its a 93
Reply
Old May 7, 2008 | 02:59 PM
  #5  
blackz93's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: May 2003
Posts: 1,661
Likes: 1
From: nc
Default

I doubt it's the injectors.
Reply
Old May 11, 2008 | 06:38 PM
  #6  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

THe injectors on the pass. side are not pulsing/working. Any ideas???
Reply
Old May 11, 2008 | 07:02 PM
  #7  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

I put 24# in mine (not the thin new style) and mine worked fine right off the bat, and still do.
Reply
Old May 11, 2008 | 07:20 PM
  #8  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

Mine don't \= Well, I'm sure mine work (because I used a test light and they all are getting power), but maybe it's because my car's not tuned for the larger injectors? But why would the driver side ones make a loud *** ticking noise? It's obnoxiously loud.. They are brand new injectors, I doubt they went bad the first day.. Perhaps I should tune it first? What would you suggest?
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
Old May 11, 2008 | 07:21 PM
  #9  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

Has nothing to do with the tune.
Reply
Old May 11, 2008 | 07:24 PM
  #10  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

The injectors themselves?
Reply
Old May 11, 2008 | 07:30 PM
  #11  
C5042081's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Jul 2004
Posts: 569
Likes: 0
From: Harleysville, Pa
Default

did you try out a noid light tester to see if the pulse is getting to the injecter?
it plugs into the injecter wire end and lights when the pulse hits, this will rule out a wire problem
Reply
Old May 11, 2008 | 07:33 PM
  #12  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

i didnt use a noid light tester.. can i find one at pep boys? how much are they?
Reply
Old May 11, 2008 | 08:32 PM
  #13  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

They're kinda expensive from what I remember... Like $35-40 (which to me is kinda pricey for a light heh)

And the tune only helps to compensate for bigger injectors, and our 93s only came with 22#, and if you have SVO 24# then it's like 25.5# on GM PSI.
Reply
Old May 11, 2008 | 08:38 PM
  #14  
1badzee's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

Well if pulses arent being sent to the injectors.. what's at fault? The pcm right?
Reply
Old May 11, 2008 | 10:00 PM
  #15  
C5042081's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Jul 2004
Posts: 569
Likes: 0
From: Harleysville, Pa
Default

Originally Posted by 1badzee
Well if pulses arent being sent to the injectors.. what's at fault? The pcm right?
for a single noid light you can get one(GM style) at a parts store for $5, i seen alot sell the whole kit of diff makes that is $20-30

If you have no light flashing for the whole side its either a wiring problem, or something with the pcm.


Another thing you could try is test the wires coming out of the pcm for each injecter, kinda a pain but it will tell you for sure if its the wiring, also scan for any codes.
Reply
Old May 11, 2008 | 10:06 PM
  #16  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

Maybe that's what I remember seeing, were kits. It's been years since I worked at the parts store :\
Reply




All times are GMT -5. The time now is 02:09 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 | 2026-06-04 18:13:20


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