C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Help with injectors

Thread Tools
 
Search this Thread
 
Old Apr 19, 2010 | 06:03 PM
  #21  
jph's Avatar
jph
Thread Starter
Advanced
 
Joined: Aug 2005
Posts: 90
Likes: 0
Default

grounds are good. i can try to load each cyl up maually with a shot of fuel by pinning the injectors, or a shot of start fluid i guess...
need to get it to fire and at to get a code to light up?
Reply
Old Apr 19, 2010 | 06:07 PM
  #22  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,465
Likes: 1,167
From: Dyer, IN
Default

Originally Posted by jph
grounds are good. i can try to load each cyl up maually with a shot of fuel by pinning the injectors, or a shot of start fluid i guess...
need to get it to fire and at to get a code to light up?
should be able to generate a code by cranking, especially if it was a crankshaft sensor, etc.

Sounds like you have spark though. I would not try to load each cylinder, because you don't know how much fuel is accumulating.
Reply
Old Apr 19, 2010 | 07:17 PM
  #23  
jph's Avatar
jph
Thread Starter
Advanced
 
Joined: Aug 2005
Posts: 90
Likes: 0
Default

well just crawled out from under it...
pulled the 3 pin crank weatherpack, power, ground and traced the blue/white at the crank sensor over to the pcm pin 12 and everything good with .1ohm.
no corosion at all in the blue or red pcm conectors at all. car only has 17k on it
side note, sprayed 4-5 seconds of ether in the intake track with the air filter removed and still doesnt even attempt to fire! how much ether is safe to shoot in there with the glass nylon intake???
Reply
Old Apr 19, 2010 | 07:29 PM
  #24  
jph's Avatar
jph
Thread Starter
Advanced
 
Joined: Aug 2005
Posts: 90
Likes: 0
Default

i had the general misfire code 300 or whatever when it stumbled, but since then no pcm codes have came up at all. on another c5 i had a long time ago the #1 coil failed and it identified that to me on the dic. i did not check for spark on all 8 though just 4 i think 2 on each side....
Reply
Old Apr 19, 2010 | 07:46 PM
  #25  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,465
Likes: 1,167
From: Dyer, IN
Default

Originally Posted by jph
well just crawled out from under it...
pulled the 3 pin crank weatherpack, power, ground and traced the blue/white at the crank sensor over to the pcm pin 12 and everything good with .1ohm.
no corosion at all in the blue or red pcm conectors at all. car only has 17k on it
side note, sprayed 4-5 seconds of ether in the intake track with the air filter removed and still doesnt even attempt to fire! how much ether is safe to shoot in there with the glass nylon intake???
I can't answer that for certain. I would say, based on your explanation, that should have been enough....when I did it, I had someone cranking the motor over so it was drawn in.

The service manual does note, that you have to crank the engine for 15 seconds, in an attempt to get a code to set...when none is displayed. I know this is hard on the battery, but might be worth a try.

Also wondering, after you pulsed the fuel injectors manually, did you pull the plugs to see if the smelled of fuel?
Reply
Old Apr 19, 2010 | 07:57 PM
  #26  
jph's Avatar
jph
Thread Starter
Advanced
 
Joined: Aug 2005
Posts: 90
Likes: 0
Default

ah, 15 seconds ok, no problem got plenty of battery( a pair of 55 ah in the rear cubbys one on each side plus one under the hood) voltage and current arnt an issue..
had a helper crank while i sprayed as well, this is just crazy. ill try the 15 sec crank now
Reply
Old Apr 19, 2010 | 08:23 PM
  #27  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,465
Likes: 1,167
From: Dyer, IN
Default

Originally Posted by jph
ah, 15 seconds ok, no problem got plenty of battery( a pair of 55 ah in the rear cubbys one on each side plus one under the hood) voltage and current arnt an issue..
had a helper crank while i sprayed as well, this is just crazy. ill try the 15 sec crank now
give me a call. PM sent.
Reply
Old Apr 19, 2010 | 08:48 PM
  #28  
jph's Avatar
jph
Thread Starter
Advanced
 
Joined: Aug 2005
Posts: 90
Likes: 0
Default

crazy, after the 15 sec on crank while spraying ether into it , it stumbled to life ( still with no codes other than general misfire 300) and smoothed out, shut it down and going to get 5 gall of premium first before starting.
this all started when the tank went dry last night and we thought it was out of gas, but what really happend was the tank has been sitting for a year with old gas and must have scrounged the sludge off the tank into the fuel rails. all the injectors look good on a scan tool now and the pulse smoothed out! weird. thanks for the help..
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 19, 2010 | 08:55 PM
  #29  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,465
Likes: 1,167
From: Dyer, IN
Default

Originally Posted by jph
crazy, after the 15 sec on crank while spraying ether into it , it stumbled to life ( still with no codes other than general misfire 300) and smoothed out, shut it down and going to get 5 gall of premium first before starting.
this all started when the tank went dry last night and we thought it was out of gas, but what really happend was the tank has been sitting for a year with old gas and must have scrounged the sludge off the tank into the fuel rails. all the injectors look good on a scan tool now and the pulse smoothed out! weird. thanks for the help..
Ok.
Reply




All times are GMT -4. The time now is 06:20 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE