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

Code 34???

Thread Tools
 
Search this Thread
 
Old Oct 16, 2003 | 10:13 AM
  #1  
JJ 86's Avatar
JJ 86
Thread Starter
Safety Car
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Feb 2003
Posts: 3,845
Likes: 95
From: Springfield MO
Default Code 34???

If the MAF sensor was bad would it start and run poorly with it unpluged or would it still start then die? Just replaced the relays (not to long ago) behind the battery.
Reply
Old Oct 16, 2003 | 10:34 AM
  #2  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default Re: Code 34??? (JJ 86)

Usually you can tap the MAF with a screwdriver and disconnect it and the engine will run slightly better, though not always.

Sounds like its time to replace it.
Reply
Old Oct 16, 2003 | 10:43 AM
  #3  
Unriced's Avatar
Unriced
Pro
 
Joined: Oct 2002
Posts: 586
Likes: 0
From: Schmuckville SA
Default Re: Code 34??? (JJ 86)

During one of my troubleshooting epsiodes, I disconnected my MAF and the car

ran like crap..And it threw a code... My one cent.
Reply
Old Oct 16, 2003 | 10:51 AM
  #4  
Corvette0096's Avatar
Corvette0096
Race Director
20 Year Member
Liked
 
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Default Re: Code 34??? (JJ 86)

34 (1985-1990) Clean the throttle body. Check MAF connections. Replace MAF relay. Replace MAF Sensor. Possible ECM failure.
Reply
Old Oct 16, 2003 | 11:50 AM
  #5  
vinnies87's Avatar
vinnies87
Le Mans Master
 
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Default Re: Code 34??? (Corvette0096)

:iagree:
Reply
Old Oct 16, 2003 | 03:08 PM
  #6  
JJ 86's Avatar
JJ 86
Thread Starter
Safety Car
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Feb 2003
Posts: 3,845
Likes: 95
From: Springfield MO
Default Re: Code 34??? (JJ 86)

Well, so far its not the MAF sensor nor is it the burn-off relay. Still trying to locate the power relay. If this isn't it would there be any other sensors that will cause this particular problem? :banghead:
Reply
Old Oct 16, 2003 | 05:13 PM
  #7  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default Re: Code 34??? (JJ 86)

Have you cleaned the TB and IAC?
How did you determine that the MAF was still good?
The two relays sitting behind the batt are the power and burnoff relays, if you replaced those recently i would eliminate them, although a bad MAF could end up killing them and vice versa.

Otherwise its a connection, or the ECM.
Reply
Old Oct 16, 2003 | 11:50 PM
  #8  
JJ 86's Avatar
JJ 86
Thread Starter
Safety Car
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Feb 2003
Posts: 3,845
Likes: 95
From: Springfield MO
Default Re: Code 34??? (vader86)

Well, just replaced both relays behind the battery along with the MAF sensor. Now no code 34 but it still starts up and then dies unless giving it gas then it runs. My next step will be to remove the ECM and replace it since it has a lifetime warranty. Also the IAC and the throttle body were cleaned last month when i was having the same problems. :banghead:
Reply

Get notified of new replies

To Code 34???

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




All times are GMT -4. The time now is 09:42 PM.

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