C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Pcv valve

Thread Tools
 
Search this Thread
 
Old Sep 12, 2011 | 01:26 PM
  #1  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default Pcv valve

Pcv valve hose fell off by TB(don't know when) reattached and the car dies what up with that???? Wont stay running with it on so i have to leave off and car is running funny. Idle alittle higher some flat stops at lower rpm when taking of I know should be in tech but since i have FI might have somthing to do with that??? No codes
Reply
Old Sep 12, 2011 | 01:36 PM
  #2  
cdkcorvette7's Avatar
cdkcorvette7
Tech Contributor
 
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Default

Did you check the hose to make sure there are no obstructions in it blocking air flow?
Reply
Old Sep 12, 2011 | 01:42 PM
  #3  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,451
Likes: 1,155
From: Dyer, IN
Default

Originally Posted by helga203
Pcv valve hose fell off by TB(don't know when) reattached and the car dies what up with that???? Wont stay running with it on so i have to leave off and car is running funny. Idle alittle higher some flat stops at lower rpm when taking of I know should be in tech but since i have FI might have somthing to do with that??? No codes
Was it tuned with the hose disconnected?
Reply
Old Sep 12, 2011 | 03:25 PM
  #4  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

The engine has IDLE relearned with the hose OFF. It thinks its really lean so its adding lots of fuel. DISCONNECT THE BATTERY and let it sit for 4-5 min, reconnect it, CLEAR ALL your DTCs, reconnect the PCV hose and start the engine. It will idle a little funny as it idle relearns but,, it should start and idle normaly.

Give that a try.



BC
Reply
Old Sep 12, 2011 | 04:34 PM
  #5  
dgrant3830's Avatar
dgrant3830
Tech Contributor
10 Year Member
 
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Default

Sure sounds like the OP has driven it for a long while this way to the point it adjusted itself to the new additional air.
Reply
Old Sep 12, 2011 | 08:01 PM
  #6  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default

Originally Posted by cdkcorvette7
Did you check the hose to make sure there are no obstructions in it blocking air flow?
yes. none
Reply
Old Sep 12, 2011 | 08:01 PM
  #7  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default

Originally Posted by lucky131969
Was it tuned with the hose disconnected?
No.
Reply
Old Sep 12, 2011 | 08:02 PM
  #8  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default

Originally Posted by Bill Curlee
The engine has IDLE relearned with the hose OFF. It thinks its really lean so its adding lots of fuel. DISCONNECT THE BATTERY and let it sit for 4-5 min, reconnect it, CLEAR ALL your DTCs, reconnect the PCV hose and start the engine. It will idle a little funny as it idle relearns but,, it should start and idle normaly.

Give that a try.



BC
Somthing came up i will try this 2morro morning.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Sep 12, 2011 | 08:03 PM
  #9  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default

Originally Posted by dgrant3830
Sure sounds like the OP has driven it for a long while this way to the point it adjusted itself to the new additional air.
I hope this is the problem.Shall find out 2morro morn. Thanks everyone
Reply
Old Sep 12, 2011 | 08:14 PM
  #10  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default update

Car started to throw p0200 codes so i started to check injector harness for broken wires i noticed the pcv tube that connects the valve covers in the back of the engine by the firewall was cracked so i removed the whole pcv system all the tubing and rerouted to the front of the engine with all new tubing and pcv valve. Reattached to TB and that's when the car died. Somehow the car is running with the pcv tubing attached to TB, but the idle go's up and down no consistence idle and when i excelerate i get popping and miss firing but no codes i don't know if it's part of the injector harness p0200 problem or the pcv system. I'm lost. Any help would be great. Thanks
Reply
Old Sep 13, 2011 | 09:56 AM
  #11  
helga203's Avatar
helga203
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,012
Likes: 726
Default

Originally Posted by helga203
Car started to throw p0200 codes so i started to check injector harness for broken wires i noticed the pcv tube that connects the valve covers in the back of the engine by the firewall was cracked so i removed the whole pcv system all the tubing and rerouted to the front of the engine with all new tubing and pcv valve. Reattached to TB and that's when the car died. Somehow the car is running with the pcv tubing attached to TB, but the idle go's up and down no consistence idle and when i excelerate i get popping and miss firing but no codes i don't know if it's part of the injector harness p0200 problem or the pcv system. I'm lost. Any help would be great. Thanks
ttt
Reply

Get notified of new replies

To Pcv valve





All times are GMT -4. The time now is 07:42 AM.

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