C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Running Rough

Thread Tools
 
Search this Thread
 
Old May 25, 2003 | 03:28 PM
  #1  
Easy95&64's Avatar
Easy95&64
Thread Starter
Heel & Toe
 
Joined: Jan 2001
Posts: 19
Likes: 0
From: Bryan, TX, USA
Default Running Rough

My 95 LT1 is running terrible. It has 187K on it and I just finished changing both the radiator and the fuel pump.

It seams to be running way rich (black smoke out the tailpipe and you can't hardly breath in the garage) WHen the fans come on the check engine light also comes on. When the fans go off, so does the check engine light.

Car just ain't running right and has no guts. IT has been in the garage since January due to my travel schedule and to get it back on the road is the goal.

Any chance any of ya'll have gone throught this before? :confused:
Reply
Old May 25, 2003 | 04:17 PM
  #2  
ittlfly's Avatar
ittlfly
Safety Car
20 Year Member
 
Joined: Feb 2002
Posts: 4,212
Likes: 10
From: Sun City West Az
Default Re: Running Rough (Easy95&64)

It sounds like the ECM set a code. Have you pulled it yet? A shot in the dark...it might be a O2 sensor problem.
Reply
Old May 25, 2003 | 07:04 PM
  #3  
Easy95&64's Avatar
Easy95&64
Thread Starter
Heel & Toe
 
Joined: Jan 2001
Posts: 19
Likes: 0
From: Bryan, TX, USA
Default Re: Running Rough (ittlfly)

I don't know how to pull the code. Will the code remain when the light goes off?
Reply
Old May 25, 2003 | 07:26 PM
  #4  
ittlfly's Avatar
ittlfly
Safety Car
20 Year Member
 
Joined: Feb 2002
Posts: 4,212
Likes: 10
From: Sun City West Az
Default Re: Running Rough (Easy95&64)

I don't know how to pull the code. Will the code remain when the light goes off?
Yes, it is sometimes called a "soft code" as the light turns off rather than remaining on. However, the code is still stored in the memory. You have a OBDII system. I think if you do a search on the codes, you will probably find a bunch of tips on how to retreave it and what the code means. My system is an OBDI so I don't want to mislead you. Maybe someone will jump in here with the info but I think a search will produce faster results.
Reply
Old May 26, 2003 | 01:28 PM
  #5  
Easy95&64's Avatar
Easy95&64
Thread Starter
Heel & Toe
 
Joined: Jan 2001
Posts: 19
Likes: 0
From: Bryan, TX, USA
Default Re: Running Rough (ittlfly)

I got the codes.

Module 1 gives C12
Module 4 gives H64

Can anyone help me identify these 2 codes?
Reply
Old May 26, 2003 | 02:16 PM
  #6  
ittlfly's Avatar
ittlfly
Safety Car
20 Year Member
 
Joined: Feb 2002
Posts: 4,212
Likes: 10
From: Sun City West Az
Default Re: Running Rough (Easy95&64)

I can't help with the meaning of the codes....maybe you should try a fresh post with the codes in the topic....? At least with the codes, you will have a starting point to fix the problem(s) :) BTW.. (, no disrespect, )I strongly suggest you buy the Helms manuals for the car.....as you would have been well on your way to having it fixed by now.


[Modified by ittlfly, 11:20 AM 5/26/2003]
Reply

Get notified of new replies

To Running Rough





All times are GMT -4. The time now is 09:39 AM.

story-0
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-1
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
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE