Jump to content


Photo

Air supply system


  • Please log in to reply
56 replies to this topic

#41 Ordex

Ordex

    New Member

  • Members
  • Pip
  • 88 posts
  • Gender:Male
  • Location:Hobart

Posted 10 January 2019 - 06:09 AM

I couldn't find a torque figure for the TT manifold to block bolts. 25Nm seemed to be the figure for every other EJ of the same era, and it's what's listed in the Haynes manual for 3rd gen Legacy, so that's what I went with.

 

When I was torquing mine up one seemed to be taking more turns than the rest. Backed it out and found the bolt stretched out and about to snap in half! What a pain that would be!!!



#42 Josh18

Josh18

    New Member

  • Members
  • Pip
  • 30 posts

Posted 11 January 2019 - 04:12 PM

Nice work fixing up your manifold, it looks great!

If you still have it out could you please take a pic of the how the factory fuel rail and pressure regulator is set up?

Cheers

Josh



#43 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 22 posts

Posted 11 January 2019 - 04:15 PM

Got mine from Subaru dealer, oem is best seeing as gates has sold out to China, continue with your story, very interesting

#44 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 14 January 2019 - 11:45 PM

Nice work fixing up your manifold, it looks great!
If you still have it out could you please take a pic of the how the factory fuel rail and pressure regulator is set up?
Cheers
Josh

I didn't read it early enough. I literally bolted the manifold to the block and then checked the forums. See if these will help you:

Attached Files


gallery_5378_147_9927.png


#45 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 14 January 2019 - 11:55 PM

And to get some sort of a closure, the idling fluctuation is still present.

I put the manifold back on, and there is no change in the idle. Still goes up and down.

I only bought 3m of vacuum tubing, and that wasn't enough to replace ALL of the plumbing around the engine bay. So I just did the ones that were unreachable with the manifold on and then "hurried" starting the engine.

Naturally, I plugged the coils in the other way and killed a battery cranking, but on the bright side, I shocked myself with the fact that there were no leftover bolts after the procedure. I don't think it ever happened to me before...

With that said, I think I am going to finish the job and replace ALL of them vacuum tubes, and then get to that timing. I saw another thread somewhere in twin section where there was a man with surging idle, did the timing belt with all the pulleys and got it sorted.

I think I tried everything else, what's another 500 bucks... (that's sarcasm btw.)

Also I discovered oil drop on the bottom of my oil filter. That will be the camshaft seal not the head gasket... right?

gallery_5378_147_9927.png


#46 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 22 posts

Posted 15 January 2019 - 09:14 AM

That was me with the surging/low idle, doing timing did sort the idle out, still surges a little when warming her up but doesn't bother me to much. Next thing on the list to do is the PCV valve. It used to stall out at the lights which was really annoying, oil drip on filter could be cam seals or oil pump im guessing, have fun!

#47 duncanm

duncanm

    wha' who ?

  • Members
  • PipPipPip
  • 1,825 posts
  • Gender:Male
  • Location:Sydney

Posted 15 January 2019 - 09:17 AM

Could also be oil cooler seal... Clean her up and then inspect after a while

#48 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 22 posts

Posted 15 January 2019 - 12:01 PM

Yeah true, my model doesn't have one

#49 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 16 January 2019 - 07:04 AM

Thanks for the ideas. I will put them on my list.

I got 4 new CEL codes after the intake was put back on. I suspect these to be a result of bad contact after re-connecting the plugs. Well that's the theory anyway; 

 

The CEL comes on when I start the engine, and doesn't go away, so there is definitely something disconnected...

12 - Starter switch or circuit.
24 - Air control valve or circuit.
44 - Waste gate duty solenoid (turbo).
68 - Exhaust valve duty solenoid.

With the intake being off for so long - almost 5 weeks - is it safe to assume the ECU would have been reset to factory default ? 

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I found this on nasioc.com in regards to CEL 24 & 44 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From <https://forums.nasio...d.php?t=2125765>

With OBD I Subies, the only reason that a sensor would trip a code would be the following:

1. Sensor is disconnected.

2. Sensor is not receiving power or is not grounded properly.

3. The sensor itself is shot to the point it cannot communicate with the ECU.

 

Code 24 would be for the Idle Air Control Valve. Is your idle funny in anyway, like does it go up and down or is it low or high? (This sounds familiar...)

 

Code 44, as you have said is for the wastegate duty solenoid.

 

First things first, check and make sure the connectors are plugged in.

 

If they are plugged in and you know how to use a multimeter and a testlight, test for power to the sensors using the testlight and test to make sure that the sensors are being properly grounded.

 

If everything tests out then your sensors themselves are most likely messed up beyond all recognition.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


gallery_5378_147_9927.png


#50 duncanm

duncanm

    wha' who ?

  • Members
  • PipPipPip
  • 1,825 posts
  • Gender:Male
  • Location:Sydney

Posted 16 January 2019 - 12:52 PM

12 - Starter switch or circuit.
24 - Air control valve or circuit.
44 - Waste gate duty solenoid (turbo).
68 - Exhaust valve duty solenoid.

 

 at least 2/4 of those codes are to do with solenoids in the BBOD.  Check your wiring to that.\

 

and 24 (IACV code) will probably lead to bad idle, from http://www.4bc.org/vanagon/codes.html ()but I don't know if its true.,.)

 

Code 24

With the IAC code 24 thrown, the ECU will use what is called 'fuel cut' to reduce excessive engine RPM. It turns off 1 or 2 injectors to maintain idle speed, for certain values of RPM, vehicle speed, and throttle position. This can result in a rough idle, and poor idle exhaust emissions values. 


#51 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 17 January 2019 - 01:45 PM

I didn't transfer the little choke pill over to the new plumbing when I did the primary turbo vacuums... 

I went through the rubbish bin and got all of them old vacuum lines back out this morning.

...

 

Attached Files


gallery_5378_147_9927.png


#52 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 17 January 2019 - 03:39 PM

I couldn't find a torque figure for the TT manifold to block bolts. 25Nm seemed to be the figure for every other EJ of the same era, and it's what's listed in the Haynes manual for 3rd gen Legacy, so that's what I went with.

 

When I was torquing mine up one seemed to be taking more turns than the rest. Backed it out and found the bolt stretched out and about to snap in half! What a pain that would be!!!

This turned out to work just fine. Thank you. 


gallery_5378_147_9927.png


#53 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 17 January 2019 - 10:00 PM

  

12 - Starter switch or circuit.
24 - Air control valve or circuit.
44 - Waste gate duty solenoid (turbo).
68 - Exhaust valve duty solenoid.
 
 at least 2/4 of those codes are to do with solenoids in the BBOD.  Check your wiring to that.\
 
and 24 (IACV code) will probably lead to bad idle, from http://www.4bc.org/vanagon/codes.html ()but I don't know if its true.,.)
 
Code 24
With the IAC code 24 thrown, the ECU will use what is called 'fuel cut' to reduce excessive engine RPM. It turns off 1 or 2 injectors to maintain idle speed, for certain values of RPM, vehicle speed, and throttle position. This can result in a rough idle, and poor idle exhaust emissions values. 

This BBOD - it's now my #1 to-do.Thank you, again.

gallery_5378_147_9927.png


#54 podmak

podmak

    New Member

  • Members
  • Pip
  • 89 posts
  • Gender:Male

Posted 17 January 2019 - 10:15 PM

It's probably worth mentioning:

Last night, I took it for a ride to local store. Stepped on it (restrictor pill still out, CEL still on) and the secondary turbo didn't come on. Instead, something clicked and the CEL went away. Boost returned after releasing and reapplying pressure on the accelerator. Didn't get a chance to go as fast as to get the secondary turbo to kick in since.

Today, I reinstalled the restrictor pill. I drove the car quite a bit. No CEL. I cleared the codes, and none came back yet. Still didn't have a chance for the twin turbo operation to kick in. But no CEL at all.

While I had the manifold off, I replaced the knock sensor with a genuine Subaru part.

Next step is to finish all of the vacuum lineage, and most importantly clean all the shit from BBOD - mercilessly replace all of the vacuum lines, even if they look ok. I am loosing it, mate...

gallery_5378_147_9927.png


#55 El_Freddo

El_Freddo

    Rock'n the old Skool

  • Members
  • PipPipPip
  • 1,316 posts
  • Gender:Male
  • Location:Bendigo/Benders/Central Vic/part nomad
  • Interests:Subarus, 4wd'n Subarus, travelling Subarus, Tinkering... I could go on!

Posted 17 January 2019 - 10:19 PM

I am loosing it, mate...


No, it seems like you’re starting to win the battle ;)

Keep up the good work and it’ll pay off!!

Cheers

Bennie
"The lounge room is not a workshop..."
https://www.imageshack.us/i/po1BKrxbj
1BKrxb.jpg
El Freddo's Pics    -    El_Freddo's youtube

#56 duncanm

duncanm

    wha' who ?

  • Members
  • PipPipPip
  • 1,825 posts
  • Gender:Male
  • Location:Sydney

Posted 18 January 2019 - 04:48 AM

Thing to do with the BBOD is check all the solenoids are working with a battery and blow through them with some carb cleaner.

Clean or replace all vac lines but be very careful not to lose the one or two pills in there.

#57 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 22 posts

Posted 18 January 2019 - 08:43 AM

Persiver mate, you will get there👍




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users