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

code 42,43 please help

Thread Tools
 
Search this Thread
 
Old Jan 18, 2005 | 01:32 AM
  #1  
brogden31's Avatar
brogden31
Thread Starter
Advanced
 
Joined: Jan 2005
Posts: 67
Likes: 0
Default code 42,43 please help

i was having problems with my 85 and not getting any codes then i got a new ecm now i have codes 42 and 43 im guessing bad knock sensor. what would a bad k.s. do becouse with this new ecm my car is acting crazy sometimes the overdrive will be on when i start it and sometimes it wont even work (4+3)didnt do this before the new ecm.
Reply
Old Jan 18, 2005 | 01:50 AM
  #2  
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

gee... that is interesting.

as for the knock sensor, it will cause timing to be reduced if there is a problem.
Reply
Old Jan 18, 2005 | 02:02 AM
  #3  
mikey whipreck's Avatar
mikey whipreck
Melting Slicks
15 Year Member
 
Joined: Jun 2004
Posts: 3,032
Likes: 4
Default

Originally Posted by bogus
as for the knock sensor, it will cause timing to be reduced if there is a problem.

there is alot about that topic in the search...


however... maybe you got a faulty ECM. I'm assuming you bought a reman'd one right?
Reply
Old Jan 18, 2005 | 07:50 AM
  #4  
Brimis's Avatar
Brimis
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2003
Posts: 1,647
Likes: 28
From: Woodbridge NJ
Default

My 84 Helms reads, 42 EST, 43 ESC. Electronic Spark Timing/Control.
Reply
Old Jan 18, 2005 | 08:11 AM
  #5  
runner140*'s Avatar
runner140*
Le Mans Master
20 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Default Possibly a.....

Faulty new ECM. Could it come from the box with the codes. Its happened on this Forum before.
Reply

Get notified of new replies

To code 42,43 please help





All times are GMT -4. The time now is 02:57 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