C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Check engine light flashing !!

Thread Tools
 
Search this Thread
 
Old Apr 28, 2008 | 09:57 AM
  #1  
JPN800's Avatar
JPN800
Thread Starter
Instructor
 
Joined: Jan 2007
Posts: 102
Likes: 0
From: Queens NY
Default Check engine light flashing !!

When i get on my car hard for like 3 gears, The check engine light will flash. The code that comes up is ( loss of communication with ecm) The car will run and drive fine the whole time. And the light will go out after a min or so. I'm running a P1sc with 10# of boost. any ideas?
Reply
Old Apr 28, 2008 | 10:05 AM
  #2  
DOUG @ ECS's Avatar
DOUG @ ECS
Premium Supporting Vendor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 23,599
Likes: 1,225
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Default

Miss fire code.
Reply
Old Apr 28, 2008 | 10:07 AM
  #3  
JPN800's Avatar
JPN800
Thread Starter
Instructor
 
Joined: Jan 2007
Posts: 102
Likes: 0
From: Queens NY
Default

OK, how do i go about fixing that? should i replace plugs and wires? and if i need to do the plugs which ones do i use and what gap. Thanks
Reply
Old Apr 28, 2008 | 07:51 PM
  #4  
BlckC5's Avatar
BlckC5
Intermediate
 
Joined: May 2007
Posts: 48
Likes: 0
From: lehi utah
Default

Been there, done that. Misfire. Its not bad enough to set it solid.

Could be plugs, wires, coils, or you could have a misfire due to injector.

First things first, check all connections, wiring, etc.

If thats fine, was the misfire due to extremely rich AF ratio? Like under 10:1. Some dynos wont read out under 10.
Reply
Old Apr 28, 2008 | 09:50 PM
  #5  
DOUG @ ECS's Avatar
DOUG @ ECS
Premium Supporting Vendor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 23,599
Likes: 1,225
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Default

Have someone scan it and see what cylinder it is, if it's one it's most likely a wire or plug. It if is in inconsistant cylinders and random, it is most likely in the tune.
Reply
Old Apr 29, 2008 | 10:55 AM
  #6  
JPN800's Avatar
JPN800
Thread Starter
Instructor
 
Joined: Jan 2007
Posts: 102
Likes: 0
From: Queens NY
Default

Originally Posted by DOUG @ ECS
Have someone scan it and see what cylinder it is, if it's one it's most likely a wire or plug. It if is in inconsistant cylinders and random, it is most likely in the tune.
Can you PM me some prices to look at it and maby a tune. I'm not to far from the GW bridge, and can come to you.
Reply

Get notified of new replies

To Check engine light flashing !!





All times are GMT -4. The time now is 10:18 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 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