C5 Scan & Tune Corvette Onboard Diagnostics, Service Advice, Dyno Tuning, Fuel Management, Tuning Software, LS1 Edit, AutoTap, Diablo
Sponsored by:
Sponsored by: Kraken

Plug Wires KR ?

Thread Tools
 
Search this Thread
 
Old Jan 3, 2012 | 09:26 AM
  #1  
whyaskwhy's Avatar
whyaskwhy
Thread Starter
Advanced
 
Joined: Jun 2009
Posts: 50
Likes: 2
Default Plug Wires KR ?

Will Bad plug wires through Knock Retard Numbers very High ? Histoghram numbers in hp tuner up around 43 some areas on ideal to-2400 rmp. An Can feel it in the car. Even before You could hear it at ideal from exhaust. New Plugs, stock wires 65k miles on them. 12 years old. Wide band O2 readings bang on.
Reply
Old Jan 4, 2012 | 01:25 AM
  #2  
moosifer's Avatar
moosifer
Instructor
10 Year Member
 
Joined: Oct 2009
Posts: 215
Likes: 1
From: Roseville CA
Default

I had an issue on the dyno with a set of MSD wires. Measure the resistance. A couple of my wires were around 800 ohms IIRC. Bought a new set of stockers and it fixed the problem.
Reply
Old Jan 4, 2012 | 12:00 PM
  #3  
whyaskwhy's Avatar
whyaskwhy
Thread Starter
Advanced
 
Joined: Jun 2009
Posts: 50
Likes: 2
Default

Just Did resistance check 350 Ohm stock wire. Think I may have found the issue Coil pack 5 beside the oil fill on the valve cover. Was soaked with oil inside the low voltage connector. Cleaned it up and now I am going to test it with a scope. May be a bad coil pack breaking down or just the oil in it was causing the issue. Will post results
Reply
Old Jan 4, 2012 | 12:03 PM
  #4  
whyaskwhy's Avatar
whyaskwhy
Thread Starter
Advanced
 
Joined: Jun 2009
Posts: 50
Likes: 2
Default

Originally Posted by whyaskwhy
Will Bad plug wires through Knock Retard Numbers very High ? Histoghram numbers in hp tuner up around 43 some areas on ideal to-2400 rmp. An Can feel it in the car. Even before You could hear it at ideal from exhaust. New Plugs, stock wires 65k miles on them. 12 years old. Wide band O2 readings bang on.
Sorry wrong chart it was a high timing Advance chart at 43 . KR was at zero everywhere . No Codes coming up for a misfire but I can feel it
Reply
Old Jan 4, 2012 | 02:23 PM
  #5  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Sounds like a bad wire or a coil wire connection---Some aftermarket wires don't "snap on" when installed--make sure you hear them snap when you install them--MSD wires are known for this--the coil boots are too small and the wires won't click in and sometimes even pop off--
other than that you may have inadvertantly closed the gap of a plug while installing them--check all the lugs again--
Reply

Get notified of new replies

To Plug Wires KR ?





All times are GMT -4. The time now is 05:13 PM.

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 11:09:53


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