CorvetteForum - Chevrolet Corvette Forum Discussion

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

Code 33

Thread Tools
 
Search this Thread
 
Old Jan 8, 2006 | 07:16 PM
Share
  #1  
DVS 99's Avatar
DVS 99
Thread Starter
Instructor
10 Year Member
 
Joined: Apr 2005
Posts: 144
Likes: 0
From: Woodlands TX
Default Code 33
Has anyone experienced code 33 problems. If so what did you find wrong or what did you do.
Reply
0
Old Jan 8, 2006 | 08:36 PM
Share
  #2  
Aggravated4life's Avatar
Aggravated4life
Race Director
10 Year Member
 
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Default
What year? The year is important since they made changes over the years.Any mods done?When does it come on?any driveability problems?
Reply
0
Old Jan 8, 2006 | 08:58 PM
Share
  #3  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,293
Likes: 240
From: Summerland B.C. Canada
Default
This info will help you if it is 86-89. http://members.shaw.ca/corvette86/Code%2033.pdf
Reply
0
Old Jan 9, 2006 | 11:29 AM
Share
  #4  
rick lambert's Avatar
rick lambert
Le Mans Master
10 Year Member
 
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Default
Yep, gotta know the year-for instance, the 1984 used MAP, 1985-1990 used MAF. On an 84, you would probably want to check for vacumn leaks first. On a 1985-1990 it COULD be one of the three relays, power, or burnoff most likely-and if this is the case both relays should be replaced at the same time.I stated 3 relays because-the MAF gets its voltage through control of the FP relay-per HELMS! but, if you hear the FP relay running for a few seconds after turning the key to the on position-you can ALMOST eliminate it. Very important if you're going to work on your on vette to get the Helms manuals.
Reply
0
Old Jan 9, 2006 | 12:25 PM
Share
  #5  
luvmy92's Avatar
luvmy92
Melting Slicks
10 Year Member
 
Joined: Apr 2000
Posts: 3,490
Likes: 2
From: Oviedo FL
Default
Lotta info in the archives on this one...

http://forums.corvetteforum.com/show...de&forum_id=48
http://forums.corvetteforum.com/show...de&forum_id=48
http://forums.corvetteforum.com/show...m_id=48&arch=1
http://forums.corvetteforum.com/show...m_id=48&arch=1
http://forums.corvetteforum.com/show...m_id=48&arch=1

Mike
Reply
0
Old Jan 11, 2006 | 08:33 PM
Share
  #6  
DVS 99's Avatar
DVS 99
Thread Starter
Instructor
10 Year Member
 
Joined: Apr 2005
Posts: 144
Likes: 0
From: Woodlands TX
Default
Originally Posted by Bill's86Coupe
What year? The year is important since they made changes over the years.Any mods done?When does it come on?any driveability problems?
I have an 88. Has an 383 stroker with AFR heads and tpis camshaft, miniram and headers also has level 6 program. But i had this problem before I installed new motor. Comes on about 1-2 miles after leaving the house, and begins to run bad.
Reply
0
Old Jan 11, 2006 | 08:34 PM
Share
  #7  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,293
Likes: 240
From: Summerland B.C. Canada
Default
Originally Posted by AGENT 86
This info will help you if it is 86-89. http://members.shaw.ca/corvette86/Code%2033.pdf
Did you read it
Reply
0
Old Jan 11, 2006 | 08:56 PM
Share
  #8  
DVS 99's Avatar
DVS 99
Thread Starter
Instructor
10 Year Member
 
Joined: Apr 2005
Posts: 144
Likes: 0
From: Woodlands TX
Default
Mike,Thanks for all your help, now I can started!
Reply
0
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 Jan 11, 2006 | 09:47 PM
Share
  #9  
Aggravated4life's Avatar
Aggravated4life
Race Director
10 Year Member
 
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Default
Originally Posted by DVS 99
I have an 88. Has an 383 stroker with AFR heads and tpis camshaft, miniram and headers also has level 6 program. But i had this problem before I installed new motor. Comes on about 1-2 miles after leaving the house, and begins to run bad.
Ok,Hope the links posted will help you out.Also,if this began after you installed a larger TB,that can be the problem sometimes too.

If the minimum air to TPS setting is off on the larger TB,or new engine with mods,etc,it will throw a code 33 and run poorly.This happened when I tried a larger TB once before and had to figure out why it kept doing that.Im not saying this is your problem,but if you cannot get it figured out,try putting ths stock TB back on and set the minimum air and TPS and see what happens then.

A code 33 is also an unrealistic flow of air into the engine that the computer is seeing due to incorrectly adjusted minimum air speed/TPS.

Good Luck!

Reply
0

Get notified of new replies

To Code 33

Back to Subforum
C4 Tech/Performance
View Next Unread
what pushrods and lifters?




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 07:21 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