Pcv hoses??

Thread Tools
 
Search this Thread
 
Old 08-26-2011, 02:09 PM
  #1  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default Pcv hoses??

I recently got my formula back however it was missing all pcv hoses and was having a rough time starting. It's a 98 with a a4 swap and a 2000 motor

So I ran the back drivers side vent port back to the port on the back passengers side to a t fitting, and ran that to the lower port on the throttle body. I hooked up the port on the front of the valve cover to the top port on the throttle body

The car starts better now but when I floor it the car literally makes about 150 whp and goes nowhere. Did I hook up the pcv lines wrong or could the car have been tuned to run with the ports on the throttle body not hooked up to anything

Thanks for the help
Old 08-26-2011, 03:13 PM
  #2  
TECH Enthusiast
iTrader: (47)
 
FasTimeSS's Avatar
 
Join Date: Jun 2008
Location: DFW
Posts: 741
Likes: 0
Received 1 Like on 1 Post

Default

u hooked up something wrong most likely u have a huge vacum leak.
Old 08-26-2011, 03:35 PM
  #3  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

I didn't unhook anything though, in fact I hooked things back up.

Could the car have been tuned to run with a huge vacuum leak?
Old 08-26-2011, 03:48 PM
  #4  
Teching In
iTrader: (2)
 
ryan_ws6's Avatar
 
Join Date: Jun 2009
Location: Murphy, Tx
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Default

Ben I have the pcv hoses from my car you can have if you need them, I don't have the valve though.
Old 08-26-2011, 03:52 PM
  #5  
TECH Resident
iTrader: (20)
 
03Sssnake's Avatar
 
Join Date: Mar 2007
Location: H-Town/Cypress
Posts: 1,000
Received 0 Likes on 0 Posts

Default

Possibly.... I would get a vacuum gauge on that car and see where you are at. You should be able to pick one up at the autoparts store cheaply. You should have around 18-21 inHG, believe that is spec for these engines. Could also be fuel, spark, and or MAF as well. You might want to check your fuel pressure at the rail as well . Do you have any SES lights on the instrument cluster? I would wager you probably have at least thrown some codes, might have the guys at autozone pull them for you.
Old 08-26-2011, 03:58 PM
  #6  
TECH Enthusiast
iTrader: (4)
 
mike171562's Avatar
 
Join Date: Feb 2010
Location: Spring
Posts: 506
Likes: 0
Received 1 Like on 1 Post
Default

Should be something like this, without the catch can and the T-fitting instead of the back port blocked off on the passengers side

Old 08-26-2011, 04:44 PM
  #7  
TECH Enthusiast
iTrader: (16)
 
05 GSXR 1XXX's Avatar
 
Join Date: Aug 2005
Location: Woodlands, TX
Posts: 516
Likes: 0
Received 0 Likes on 0 Posts

Default

Driver side to passenger with T then to the Intake manifold.

From front pass valve cover port line to tb.
Old 08-26-2011, 04:45 PM
  #8  
TECH Enthusiast
iTrader: (16)
 
05 GSXR 1XXX's Avatar
 
Join Date: Aug 2005
Location: Woodlands, TX
Posts: 516
Likes: 0
Received 0 Likes on 0 Posts

Default

You also need a pcv valve between the T and the intake manifold line
Old 08-26-2011, 04:47 PM
  #9  
TECH Enthusiast
iTrader: (16)
 
05 GSXR 1XXX's Avatar
 
Join Date: Aug 2005
Location: Woodlands, TX
Posts: 516
Likes: 0
Received 0 Likes on 0 Posts

Default

Link to the setup I just said except you can't see the pcv valve on the blue line

https://ls1tech.com/forums/attachmen...kpcvsystem.jpg
Old 08-26-2011, 09:34 PM
  #10  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

Thanks guys those were exactly what I needed. I have everything hooked up like the pictures except for a pcv valve.

When I got the car the port on the manifold was blocked off and the line on the tb was not hooked to anything. I believe I may have to get the car retuned
Old 08-26-2011, 09:42 PM
  #11  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

Well I would need to reset the PCM to factory settings. I believe the car is not use to having the pcv valve system since everything was capped
Old 08-26-2011, 09:44 PM
  #12  
TECH Resident
iTrader: (20)
 
03Sssnake's Avatar
 
Join Date: Mar 2007
Location: H-Town/Cypress
Posts: 1,000
Received 0 Likes on 0 Posts

Default

Yeah if it was tuned with a screwed pcv system fuel/air is bound to be off.
Old 08-26-2011, 10:30 PM
  #13  
Launching!
iTrader: (13)
 
ramairracer's Avatar
 
Join Date: Jul 2004
Location: fort worth texas
Posts: 269
Likes: 0
Received 0 Likes on 0 Posts

Default

i think you might somehow put he pcv line to the tb coolant pipes???
To be cheap you can put a pcv valve on the driver side valve cover and run the hose from that to the port on the side of the intake manifold and and cap the rear pass side pipe on valve cover and run the front valve cover pipe to throttle body
Old 08-27-2011, 02:04 AM
  #14  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

Yeah I think it's just masking a bigger problem at this point. With the pcv system hooked up the car misses like crazy if you give it any throttle. With it capped it starts missing around 3500 and the car won't rev past 5 grand and it takes some time getting from 3500 up.

I'm gonna pull the plugs and start from there. Then check to male sure the intake manifold is tight

With a 98 a4 PCM, a 2000 motor, on a car that was originally a six speed I think I'm gonna find some problems
Old 08-27-2011, 02:08 AM
  #15  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

And no it's not hooked to a coolant line, I mis spoke originally the long line that wraps around the motor is hooked to the intake manifold behind the tb

The only ses light I had was for faulty maf.
Old 08-27-2011, 07:27 AM
  #16  
Launching!
iTrader: (13)
 
ramairracer's Avatar
 
Join Date: Jul 2004
Location: fort worth texas
Posts: 269
Likes: 0
Received 0 Likes on 0 Posts

Default

ok, but then you have both valve cover ports on a T fitting and jsut hooked directly to intake vaccum?? with no orifice or pcv valve in line?
if so all your doing is sucking oil vapors from the valve covers all the time thats the point of the pcv is to effictively do that, plus this is one gian vaccum leak it seems
Old 08-28-2011, 11:25 PM
  #17  
TECH Addict
Thread Starter
iTrader: (14)
 
chrysler kid's Avatar
 
Join Date: Feb 2005
Location: Mckinney Plano Frisco
Posts: 2,720
Received 6 Likes on 6 Posts

Default

I have a pcv valve on the drivers side valve cover but you are correct.

However a pcv valve seems to just be a one way block off to protect against back pressure.

So the pcv valve should be set to stop the vacuum from pulling from the valve ports?

Thanks again for the help
Old 08-29-2011, 01:10 PM
  #18  
Launching!
iTrader: (13)
 
ramairracer's Avatar
 
Join Date: Jul 2004
Location: fort worth texas
Posts: 269
Likes: 0
Received 0 Likes on 0 Posts

Default

well it sounds like its on right, maybe the problem is something else




All times are GMT -5. The time now is 10:34 AM.