C4 General Discussion General C4 Corvette Discussion not covered in Tech

Engine missing randomly

Thread Tools
 
Search this Thread
 
Old Sep 26, 2004 | 10:43 PM
  #1  
VTHokie07's Avatar
VTHokie07
Thread Starter
Instructor
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2004
Posts: 228
Likes: 47
From: Ashburn VA
Default Engine missing randomly

I have a 92' coupe and since I got it has been having a problem where every once in awhile the car will shut off at stoplights, studder under acceleration and nearly cut off under acceleration. The studder is sometimes constant and sometimes it just bumps once. On hills or at low RPMS it occurs quite frequently. After a few days it will stop doing it and be okay for a few weeks then it starts doing it again for a few days. I had a computer check done on it and the following codes came up:
Code 76 Bad Lateral Accelerometer Signal
Code 62 Tach Pulse Fault

Any thoughts? This thing is driving me insane.
Reply
Old Sep 27, 2004 | 12:04 AM
  #2  
vetteseniorcit's Avatar
vetteseniorcit
Burning Brakes
 
Joined: Jun 2003
Posts: 827
Likes: 1
From: Henderson NV
Default

Could be that it's fuel starvation caused by either (1) a clogged filter or (2) a failing fuel pump. If the fuel filter has never been changed, I'd suspect it first.
Reply
Old Sep 27, 2004 | 12:25 AM
  #3  
kwd1's Avatar
kwd1
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Apr 2002
Posts: 2,947
Likes: 0
From: North Aurora Il
Default

Just a guess, but does it do it more often when it is raining? Might be weak spark due to bad spark plug wires.
Reply
Old Sep 28, 2004 | 03:18 AM
  #4  
mitymek's Avatar
mitymek
Melting Slicks
 
Joined: May 2003
Posts: 2,496
Likes: 1
From: alaska
Default

your first code sounds like a cruise control issue.
the code 62 is kinda suspect.
if i remember correctly someone was trying to identify an unhooked wire which turnd out to be an extra wire for hooking up an external tach.maybe the 92 has one of these taps and yours is shorting?
your symptoms do sound like running out of fuel.(seems like all c4s will buck severely on hard acceleration with low fuel in the tank).
i think you got sound advice on changing the fuel filter first thing.
how many miles on it? you might be having an optispark going bad.
make sure you have good wires/plugs,good fuel pressure to the rail and go from there...
good luck

oh-you should post those codes over in scan and tune,them boys know ALL that kinda stuff and love to help
Reply
Old Sep 28, 2004 | 08:49 AM
  #5  
silver & red CE's Avatar
silver & red CE
Melting Slicks
10 Year Member
 
Joined: Jan 2000
Posts: 3,418
Likes: 1
From: NW Chicago Suburbs
Default

That's what my LT1 does right before the opti dies....
Reply
Old Sep 28, 2004 | 11:31 AM
  #6  
VTHokie07's Avatar
VTHokie07
Thread Starter
Instructor
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2004
Posts: 228
Likes: 47
From: Ashburn VA
Default

Thanks guys, It has 71,000 miles on it and I already bought a fuel filter to put in first. I'll try the guys on scan and tune for the codes.
Reply

Get notified of new replies

To Engine missing randomly





All times are GMT -4. The time now is 10:08 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