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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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 Posted: Fri Mar 29, 2024 6:40 pm Post subject: Vanagon - Subaru swap help |
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I put in a 2003 ej25 subaru engine into my van a few years ago using the Busaru YouTube channel. It worked well and everything was great. I drove up to a ski resort and the engine gave out. It sat for a couple of years while I renovated my house.
I got a 2002 ej25 engine as a replacement. I’m using the complete wiring harness from the previous engine. I’m not getting spark when I try to start it and I need some help.
I have the following codes:
Any help would be appreciated. Trouble shooting next steps. |
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WillRB
Samba Member
Joined: October 23, 2020
Posts: 183
Location: Ohio
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| Posted: Fri Mar 29, 2024 7:34 pm Post subject: Re: Vanagon - Subaru swap help |
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| VW_thepeoplescar wrote: |
I put in a 2003 ej25 subaru engine into my van a few years ago using the Busaru YouTube channel. It worked well and everything was great. I drove up to a ski resort and the engine gave out. It sat for a couple of years while I renovated my house.
I got a 2002 ej25 engine as a replacement. I’m using the complete wiring harness from the previous engine. I’m not getting spark when I try to start it and I need some help.
I have the following codes:
Any help would be appreciated. Trouble shooting next steps. |
Just to confirm you just swapped the old harness onto the new motor directly and didn’t use your previous motors intake and sensors? I am not saying that is your issue but thought it might be something to clarify for folks to help.
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1984 Vanagon Westfalia w/ Subaru Conversion (99 Legacy 2.2 Phase II) 2WD 4speed 4.57 R/P (.828 straight cut 4th) GT TBD |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Fri Mar 29, 2024 8:28 pm Post subject: Re: Vanagon - Subaru swap help |
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I used the previous motor’s intake. Let’s list all the sensors, add any that I am missing.
Camshaft sensor
Crankshaft sensor
Oil pressure sensor
Coolant temperature sensor
Knock sensor |
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wesitarz
Samba Member
Joined: August 20, 2012
Posts: 1491
Location: Victoria,B.C.Canada
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| Posted: Sat Mar 30, 2024 5:37 am Post subject: Re: Vanagon - Subaru swap help |
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| Do the cam and crank reluctors on the 02 match the 03? Otherwise your 03 ECU is not getting the correct cam and crank signals |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sat Mar 30, 2024 9:45 am Post subject: Re: Vanagon - Subaru swap help |
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| At autozone, they are the same part number. I replaced one, but the other one seems to be stuck. I am going to find a video on how to test them to check if they are working properly. |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sat Apr 13, 2024 11:31 am Post subject: Re: Vanagon - Subaru swap help |
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| I checked the OHMs and voltage through the crankshaft and camshaft sensors. They appear to be functioning properly. When I sprayed starter fluid through the air intake, it eventually fired up, but then died. |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17155
Location: Retired South Florida
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| Posted: Sat Apr 13, 2024 11:43 am Post subject: Re: Vanagon - Subaru swap help |
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No idea, but if it started off of starter fluid, it's not a spark issue persay. Sounds more like a fuel delivery problem. Check the fuel pressure and the fuel level in the tank.
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16883
Location: sticksville, ct.
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| Posted: Sat Apr 13, 2024 11:48 am Post subject: Re: Vanagon - Subaru swap help |
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| VW_thepeoplescar wrote: |
| I checked the OHMs and voltage through the crankshaft and camshaft sensors. They appear to be functioning properly. When I sprayed starter fluid through the air intake, it eventually fired up, but then died. |
a DVOM isn't a good check for a sensor like that, you need a scope
as noted, are the reluctors the same from engine to engine? subaru used a couple different configurations.
the sensors are the same...they don't care...they're just reporting how many teeth the cam/crank have
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| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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wesitarz
Samba Member
Joined: August 20, 2012
Posts: 1491
Location: Victoria,B.C.Canada
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| Posted: Sat Apr 13, 2024 8:09 pm Post subject: Re: Vanagon - Subaru swap help |
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| With the two green test connectors connected and the key turned to ON, is the fuel pump relay clicking and the fuel pump cycling? How did you check for no spark? Are the plugs wet with fuel or dry? |
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Sir Sam
Samba Member
Joined: July 19, 2009
Posts: 1690
Location: Fort Collins Colorado!
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| Posted: Sun Apr 14, 2024 9:58 am Post subject: Re: Vanagon - Subaru swap help |
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| MarkWard wrote: |
| No idea, but if it started off of starter fluid, it's not a spark issue persay. Sounds more like a fuel delivery problem. Check the fuel pressure and the fuel level in the tank. |
Dont rule out spark if starter fluid will run it, its possible for a gasoline engine to diesel on starter fluid when no spark is present.
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'91 Carat Westy
87' Syncro + '87 Westy conversion coming soon |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sun Apr 14, 2024 10:05 am Post subject: Re: Vanagon - Subaru swap help |
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| Sir Sam wrote: |
| MarkWard wrote: |
| No idea, but if it started off of starter fluid, it's not a spark issue persay. Sounds more like a fuel delivery problem. Check the fuel pressure and the fuel level in the tank. |
Dont rule out spark if starter fluid will run it, its possible for a gasoline engine to diesel on starter fluid when no spark is present. |
Just to clarify, you are saying that a piston could fire without a spark firing and starter fluid being compressed? |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sun Apr 14, 2024 10:40 am Post subject: Re: Vanagon - Subaru swap help |
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| wesitarz wrote: |
| With the two green test connectors connected and the key turned to ON, is the fuel pump relay clicking and the fuel pump cycling? How did you check for no spark? Are the plugs wet with fuel or dry? |
Yes, I have checked to see if there is fuel pressure. When I connect the two green test, it does cycle the fuel pump. I also pulled the fuel lines and they are under pressure. And fuel also comes out the other end at the fuel line.
We used a spark plug checker to check spark. We also checked the wires going to the ignition coil. On my Subaru we were able to observe voltage at this connection. We did not see voltage on the van’s engine. |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17155
Location: Retired South Florida
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| Posted: Sun Apr 14, 2024 12:49 pm Post subject: Re: Vanagon - Subaru swap help |
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Sorry there is not enough compression to ignite starting fluid. It would have been spark from the ignition system. I don’t have any real Subaru experience and to be honest, don’t own a can of starting fluid. But if the engine starts and runs momentarily off of starting fluid, that indicates the engine is getting spark. That leaves fuel or lack of is where to look next.
Fuel pressure check and injector pulse. A noid light for checking injector pulse is a handy tool to own. A stethoscope or a long screwdriver against the injector and your ear can let you hear if it’s clicking short of a noid light or stethoscope.
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Sir Sam
Samba Member
Joined: July 19, 2009
Posts: 1690
Location: Fort Collins Colorado!
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| Posted: Sun Apr 14, 2024 1:14 pm Post subject: Re: Vanagon - Subaru swap help |
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| VW_thepeoplescar wrote: |
| Sir Sam wrote: |
| MarkWard wrote: |
| No idea, but if it started off of starter fluid, it's not a spark issue persay. Sounds more like a fuel delivery problem. Check the fuel pressure and the fuel level in the tank. |
Dont rule out spark if starter fluid will run it, its possible for a gasoline engine to diesel on starter fluid when no spark is present. |
Just to clarify, you are saying that a piston could fire without a spark firing and starter fluid being compressed? |
Yes, starter fluid is volatile enough that the lower compression of a gasoline engine can cause auto ignition aka dieseling.
The best way to check for spark is with your pinky. Not my favorite way to check for spark however.
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'91 Carat Westy
87' Syncro + '87 Westy conversion coming soon |
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Sir Sam
Samba Member
Joined: July 19, 2009
Posts: 1690
Location: Fort Collins Colorado!
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| Posted: Sun Apr 14, 2024 1:19 pm Post subject: Re: Vanagon - Subaru swap help |
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| MarkWard wrote: |
| Sorry there is not enough compression to ignite starting fluid. It would have been spark from the ignition system. |
I disagree, I learned the hard way it can happen. I assumed that running on starter fluid meant I was getting spark and I spent many many hours and days chasing my tail about all sorts of other issues.
The issue turned out to be a blown fuse to the power transistor unit, replace the fuse and it fired right up.
I even kept the engine running for a few minutes hoping something would clear by pulsing squirts of starter fluid in.
I'm not saying this is the issue, I just wanted to point how making an incorrect conclusion and not verifying it another way can really throw a wrench in the troubleshooting process.
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'91 Carat Westy
87' Syncro + '87 Westy conversion coming soon |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sun Apr 14, 2024 1:45 pm Post subject: Re: Vanagon - Subaru swap help |
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| Does anyone have access to a EUC logic diagram? |
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16883
Location: sticksville, ct.
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| Posted: Sun Apr 14, 2024 1:57 pm Post subject: Re: Vanagon - Subaru swap help |
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| VW_thepeoplescar wrote: |
| Does anyone have access to a EUC logic diagram? |
did you confirm the trigger wheel teeth on both cam and crank sprockets?
if you can't do that, a diagram of the ECU will be zero help
_________________
| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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wesitarz
Samba Member
Joined: August 20, 2012
Posts: 1491
Location: Victoria,B.C.Canada
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| Posted: Sun Apr 14, 2024 5:25 pm Post subject: Re: Vanagon - Subaru swap help |
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| Never had code P1518 with my 02 2.5 from an Impreza. Seem to be no start issues related to that code. According to the pinouts you should be getting 8-14 volts to the ECU starter switch pin while cranking. |
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16883
Location: sticksville, ct.
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| Posted: Sun Apr 14, 2024 5:44 pm Post subject: Re: Vanagon - Subaru swap help |
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^^^ which would be tied into the main relay and/or ignition switch depending on the way this is wired (basically how the harness was done)
could be as simple as the ignition switch went tits up
_________________
| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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| Back to top |
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VW_thepeoplescar
Samba Member
Joined: July 21, 2018
Posts: 34
Location: UT
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| Posted: Sun Apr 14, 2024 8:57 pm Post subject: Re: Vanagon - Subaru swap help |
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| skills@eurocarsplus wrote: |
| VW_thepeoplescar wrote: |
| Does anyone have access to a EUC logic diagram? |
did you confirm the trigger wheel teeth on both cam and crank sprockets?
if you can't do that, a diagram of the ECU will be zero help |
Do you mean: are the the crankshaft gear on the 2002 legacy and 2003 legacy the same? I’m a bit confused about what you mean. |
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