The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:
SVXBot

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 02-24-2019, 01:24 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
Question CHECK ENGINE, 3 codes at once?

I had the CHECK ENGINE light come on yesterday & I am seeing 3 codes

15 - Injector #2
24 - by pass air control solenoid
35 - purge control solenoid

I am baffled by 3 codes at once... we've visually checked, what we can see, and there is no obvious damage to wiring or components. Next step is with a DVM, but I'm ~350 miles away. Any advice would be appreciated.
Reply With Quote
  #2  
Old 02-24-2019, 06:52 PM
oab_au oab_au is offline
Registered User
Subaru Gold Contributor
 
Join Date: Mar 2001
Location: Coffs Harb, Australia.
Posts: 5,000
Significant Technical Input Registered SVX
Re: CHECK ENGINE, 3 codes at once?

Three unrelated codes suggest to me, that there is a grounding problem with the engine to then ECU.
Check the grounding point on the passengers side of the inlet manifold, you see a lot of wires bolted there, and the grounding wire at the rear of the engine back to the bulkhead.
__________________
One Arm Bloke.
Tell it like it is!

95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels.
97 Liberty GX Auto sedan. 320,000Kls.
04 Liberty 30R Auto Premium. 92.000kls.
Reply With Quote
  #3  
Old 03-01-2019, 01:45 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
5 underhood ground locations.

We cleared the codes Sunday & the car was fine until last night. I found some cryptic drawings in the FSM of where the 5 underhood ground points are. Will try to match drawing under the hood...

Thought I'd share the drawings here.

bg610.png includes GB-1 GB-2
bg611.png includes GB-3 GB-4
bg612.png includes GE
Attached Images
File Type: png bg610.png (251.9 KB, 76 views)
File Type: png bg611.png (193.9 KB, 98 views)
File Type: png bg612.png (263.2 KB, 81 views)

Last edited by jes; 03-01-2019 at 01:47 PM.
Reply With Quote
  #4  
Old 03-01-2019, 04:42 PM
oab_au oab_au is offline
Registered User
Subaru Gold Contributor
 
Join Date: Mar 2001
Location: Coffs Harb, Australia.
Posts: 5,000
Significant Technical Input Registered SVX
Re: 5 underhood ground locations.

Quote:
Originally Posted by jes View Post
We cleared the codes Sunday & the car was fine until last night. I found some cryptic drawings in the FSM of where the 5 underhood ground points are. Will try to match drawing under the hood...

Thought I'd share the drawings here.

bg610.png includes GB-1 GB-2
bg611.png includes GB-3 GB-4
bg612.png includes GE
Did the same codes come back?
All those units ground through the same point GE in the last diagram, so that would be the most likely one to look at, remove it give it good clean and bolt it back.
The signals for all those units come through engine plug E1, its the square one of the two back there, on the RHS of the engine, might be worth seeing if that plug is plugged together firmly and clean.
__________________
One Arm Bloke.
Tell it like it is!

95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels.
97 Liberty GX Auto sedan. 320,000Kls.
04 Liberty 30R Auto Premium. 92.000kls.
Reply With Quote
  #5  
Old 03-02-2019, 04:20 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
Re: CHECK ENGINE, 3 codes at once?

light went off by itself... ground point looks like it's never been disturbed since '92.
Reply With Quote
  #6  
Old 03-24-2019, 01:59 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
update...

Update in case anyone is following...

Check engine came on again, along with rough idle. Drove couple miles home. Went out to read it, light off.

I flew down ~ a week ago to drive 350 miles home with my daughter. No problems, car was happy to cruise @ 75-80 MPH. Got 25 mpg.

I checked grounds, inspected connectors, replaced a leaky vacuum line on fuel regulator & cruise control. Couldn't budge the PCV, probably installed in 1992 in Japan. I managed to run some throttle cleaner through it. It behaved fine all week, until Friday (the rain returned). Check engine light came on after start, same 3 codes. Restart, light off . Went to lunch, then home.

Checked everything again... Just because: I removed & cleaned body ground by battery tray. Disconnected & cleaned: E1, E2 & single connector ground from harness to firewall. Except for the firewall ground, which looked like it had some yellow/brown goop, probably some type of dielectric grease (also all over FWD fuse socket), the pins looked clean & shiny. All connectors gave a satisfying snap when plugging back in... Also fixed broken mount on main fuse relay box.

No problem so far, but it's really intermittent... just keeping my fingers crossed. The car goes back to college in a couple of days.

Last edited by jes; 03-24-2019 at 02:02 PM.
Reply With Quote
  #7  
Old 03-26-2019, 03:48 PM
trophy956 trophy956 is offline
Registered User
 
Join Date: Aug 2009
Location: wallingford,ct
Posts: 171
Re: CHECK ENGINE, 3 codes at once?

Hi Change the main relay very common failure in svx and legacy of the early 90's the double pole relay will half close mostly throwing code 35 but have seen it do many things
Reply With Quote
  #8  
Old 03-26-2019, 08:25 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
Thanks... I'll take a look in the morning & see if I can match the sketch to the real thing

Reply With Quote
  #9  
Old 03-30-2019, 03:39 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
what's, what?

Studied under the dash & couldn't match to the sketch... I thought the sketch is looking up from the open door, maybe not. Or maybe it doesn't match production cars?

The only thing I see that might be 2 relays together is above the fuse box.
Attached Images
File Type: jpg IMG_8662sm.JPG (947.7 KB, 55 views)
File Type: jpg IMG_8667sm.JPG (783.2 KB, 84 views)
Reply With Quote
  #10  
Old 04-07-2019, 07:55 AM
trophy956 trophy956 is offline
Registered User
 
Join Date: Aug 2009
Location: wallingford,ct
Posts: 171
Re: CHECK ENGINE, 3 codes at once?

BROWN RELAY 6 wire bolted to the back side of the ecm bracket
along with the fuel pump ,relay and bracket #25229aa011 or just the relay
25232aa020 ,it was used till recent cars with a different part #
if you have trouble locating one let me know
Reply With Quote
  #11  
Old 04-08-2019, 01:29 PM
jes's Avatar
jes jes is offline
Registered User
 
Join Date: Sep 2018
Location: California
Posts: 20
Thanks for the part #s

It's listed online as
Quote:
SKU: 25232AA020
Other Names: Relay, Relay Ay

Description: Outback. Legacy. All models. From 10/91.
so even my local dealer should have it...

Shows fitment back to 1995 Subaru SVX L, LS, LSi. I'm gonna assume 1992 is the same...

Last edited by jes; 04-08-2019 at 01:32 PM.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 12:12 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
2001-2015 SVX World Network
(208)-906-1122