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

Help Please !!!

Thread Tools
 
Search this Thread
 
Old Apr 25, 2002 | 10:12 PM
  #1  
jjack9485's Avatar
jjack9485
Thread Starter
4th Gear
 
Joined: Apr 2002
Posts: 4
Likes: 0
From: conroe texas
Default Help Please !!!

My '84 Vette has been in storage for a couple of years, when parked it was running fine....now it starts and sounds like running on about 6 cyls...."check engine light stays on"....idles rough when trying to accelerate it bogs down and dies..it has crossfire injection....thanks in advance...
Reply
Old Apr 25, 2002 | 10:31 PM
  #2  
JonM's Avatar
JonM
Melting Slicks
 
Joined: Nov 2000
Posts: 3,388
Likes: 1
From: X
Default Re: Help Please !!! (jjack9485)

2 years..could be just about anything...did you put fresh gas in it? Change the fuel filter? Pull the plugs? Also check for codes and get back to us. Those are the places to start


[Modified by JonM, 11:33 PM 4/25/2002]
Reply
Old Apr 28, 2002 | 01:13 PM
  #3  
jjack9485's Avatar
jjack9485
Thread Starter
4th Gear
 
Joined: Apr 2002
Posts: 4
Likes: 0
From: conroe texas
Default Re: Help Please !!! (JonM)

Jon,

Thanks for your reply....I tried the easy things first...I replace the oxy sensor and fuel filter...no improvement...I have not pulled the plugs, I just had it tuned up prior to stowage...can new plugs go bad ? I have not replaced gas as I filled tank when stowed....you mentioned codes....I'm sorry I don't know how to check or where to get them...do you think I have to send i to a dealer and get robbed? thanks again ...

Jack
Reply
Old Apr 28, 2002 | 02:11 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: Help Please !!! (jjack9485)

We need more info to help. It would be $ well spent to get a code scanner to at least pull the codes easily (ie: autoxray, etc). I can tell you how to pull them with a paper clip on a 92 but I don't know if it works on a 84. Maybe someone will jump in here.


[Modified by ittlfly, 10:11 AM 4/28/2002]
Reply
Old Apr 28, 2002 | 02:11 PM
  #5  
JonM's Avatar
JonM
Melting Slicks
 
Joined: Nov 2000
Posts: 3,388
Likes: 1
From: X
Default Re: Help Please !!! (jjack9485)

You need a paperclip...
Engine off
Key on
Ground the ALDL (just above your right knee when sitting in drivers seat) Ground the upper right hand two pins togther with the paperclip
Watch the Check engine light. It will blink a code 12 three times then the stored codes three times each then another code 12 three times.
x=a blink - = a pause

x xx - x xx - x xx (stored codes) x xx - x xx - x xx

Once you get the codes let me know what they are
Reply
Old Apr 28, 2002 | 02:13 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: Help Please !!! (JonM)



Hey Jon...great minds here....
Reply
Old Apr 28, 2002 | 03:52 PM
  #7  
jjack9485's Avatar
jjack9485
Thread Starter
4th Gear
 
Joined: Apr 2002
Posts: 4
Likes: 0
From: conroe texas
Default Re: Help Please !!! (jjack9485)

Ok men, I shorted out the two top right pins with clip....but I get no blinks....the "check engine light" stays on when I turn ignition on...

jack
Reply
Old Apr 28, 2002 | 04:03 PM
  #8  
JonM's Avatar
JonM
Melting Slicks
 
Joined: Nov 2000
Posts: 3,388
Likes: 1
From: X
Default Re: Help Please !!! (jjack9485)

Make sure A and B are grounded togther. The paperclip should be in a "U" shape.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Apr 28, 2002 | 07:05 PM
  #9  
chucks88's Avatar
chucks88
Safety Car
15 Year Member
 
Joined: Oct 2001
Posts: 4,763
Likes: 1
From: Connectivette
Default Re: Help Please !!! (JonM)

Two year old gas. Yikes! Have you heard any stories of what can happen to lawn mowers, snow bloweres Etc. if you let gas sit in the systems until the next season.
Reply
Old Apr 28, 2002 | 09:23 PM
  #10  
jjack9485's Avatar
jjack9485
Thread Starter
4th Gear
 
Joined: Apr 2002
Posts: 4
Likes: 0
From: conroe texas
Default Re: Help Please !!! (JonM)

I know y'all are probably tired of me by now, but I really appericiate the help...Jon I used paper clip just as your diagram....but the check engine light stays on and get no blinks...would bad gas make the light stay on? after changing filter the gas looked clean and ok....can the plugs go bad from sitting? I guess I will change the plugs next....I wonder why I can't get the codes to show?

thanks again
jack
Reply
Old Apr 28, 2002 | 09:33 PM
  #11  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default Re: Help Please !!! (jjack9485)

Jack,

turn of the key. insert the hi-tech diagnostic tool (paper clip) and then turn the key on, do not start the car! then read the flashes.

I would be willing to bet the gas is DOA. you might try buying some gas stabilizer... but it may be too late.
Reply

Get notified of new replies

To Help Please !!!





All times are GMT -4. The time now is 03:05 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