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:

Intermittant missfire

Thread Tools
 
Search this Thread
 
Old Oct 16, 2006 | 08:58 AM
  #1  
cam99's Avatar
cam99
Thread Starter
Pro
25 Year Member
 
Joined: Jul 2000
Posts: 590
Likes: 1
From: Suffolk New York
Default Intermittant missfire

I have an intermittant misfire on I believe cyl 8. I used a timing light and the flashes didn't seem regular.

So I moved the coil, wire and spark plug to cyl 3. It's running better today but yesterday after the swap I had a miss.

I waiting to get the car tuned at Vette Doctors....

Is there any other way of determining which plug is misfiring? (remember its not always)
Reply
Old Oct 16, 2006 | 12:39 PM
  #2  
muncie21's Avatar
muncie21
Melting Slicks
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Mar 2005
Posts: 2,252
Likes: 181
From: NE OH
Default

Not a really good way that I know of, unless you have a scanner or it throws some codes.
You can also check the condition of the spark plugs. The cylinder that's misfiring will most likely look different (black in most cases) than the rest. Move the coil/injector/or wire and see if the dirty plug follows the component move.
Reply
Old Oct 16, 2006 | 01:34 PM
  #3  
cam99's Avatar
cam99
Thread Starter
Pro
25 Year Member
 
Joined: Jul 2000
Posts: 590
Likes: 1
From: Suffolk New York
Default

It throws a P0300 on the DIC, but doesn't say which cylinder.
Reply

Get notified of new replies

To Intermittant missfire





All times are GMT -4. The time now is 07:08 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