Re: 2001 legacy EJ25 no Injector pulse

The ecu number is 22611 ag42b. The harness did come from the same vehicle. It was an auto originally.

I have other 2000-2001 ecus that are ad84d, af61c, and ag74b. does it matter if they are not the same exact part numbers? dont these just indicate where they were manufactured??

Neutral Position Switch, ODB II, & P1101

[email protected]

#79225

Still debugging the Subaru??2.5L Frankenmotor (2.2 heads) in an '87 GL Syncro. The numbers on the ECM are:

22611 AB414

JAI 18000 RT8

4910

My mechanic has rigged up an ODB II connector to the ECM and the Vanagon O2 LED is being used as the CEL.

The VIN of the Subaru donor car is 45(could be S)B3K655057324604

The CEL comes on after about twenty minutes of driving and I see P1101 -"?Neutral position switch circuit low" code on the reader. I've read through related posts on theSamba and here, and I'm confused. The documentation from my mechanic included a diagram titled 13. ENTINE ELECTRICAL SYSTEM - LHD. I've posted a copy here:

Not sure where the diagram came from, but I'd sure like to know where to get a complete copy as I was provided only a few of the pages. Anyway, the diagram shows the B84 plug to the ECM and B25 connector to the Neutral Position Switch (MT). On that diagram, Pin 78 is the Neutral Position Switch connection on the ECU, Pin 81 appears to be the START signal into the ECU, a R/Y wire. That lead comes from B105, Starter Interlock Relay (MT). I found a post from Tom Shields that suggested connecting the Neutral Position Switch and START terminals on the ECU together to produce a variable signal to simulate the real switch. I also found a Samba post that also references B84, but gives a different pin number for the Neutral Position Switch. So one question is, how do I determine what the pins are for the ECM I have, as they seem to vary widely over the life of the 2.2 and 2.5 Subaru engines?

My other question is that most of the posts I've read are several years old, and reported resolutions range from grounding the Neutral Position Switch ECM pin to rigging up a Hall effect device and magnet to the shift linkage to simulate the actual Subaru switch. The latter sounds like a lot of hoopla to go through, and?I'm wondering if there's been a consensus reached on what the best/easiest method is to resolve the P1101 error??

Thanks in advance...

Re: 2001 legacy EJ25 no Injector pulse

[email protected]

#79224

Here something easy to do, take a multimeter and see if you have 5 volts at the throttle position sensor (pins 2 (black) and 4 (red) with the key is on, and everything connected.

Also what part number is the ECU (22611xxxxx)? and did the harness also come from the same car as the ECU and engine?

?as stated on here, 2001 Legacy's ECUs are different from manual trans to auto trans, so grounding B25 isn't going to do anything i believe?

Re: 2001 legacy EJ25 no Injector pulse [3 Attachments]

#79223

开云体育

Here is a link to the wiring of a 2001 legacy that may help you. ?

On Oct 13, 2018, at 2:11 AM, erolo@... [subaruvanagon] <subaruvanagon@...> wrote:

Show quoted text

?

Im pretty sure im looking at it correctly.

B136 is a green connector.
If looking at the back of the connector where the wires feed into the plug, the numbers run right to left.?

Im also fairly certain that these pins (b136-15, b136-16) are missing from the plug. Where do these wires go originally? Im assuming they run through either b21(e2) or b22(e3). Which wires do they connect to? Where can I route them if they need to be re pinned? And why arent they in the original harness?

attached is a color coded ecu pinout that i made.

<2001 Legacy ECM Pinout_Page_2.jpg>

<2001 Legacy ECM Pinout_Page_1.jpg>

<2001 Legacy ECM Pinout_Page_3.jpg>

Re: 2001 legacy EJ25 no Injector pulse [3 Attachments]

#79222

开云体育

On a 01 legacy manual tranny B136-15 is RB and goes to B21-12 then turns to R and then goes to E13-1 throttle position sensor and E21-3 intake manifold pressure sensor. ?Also it goes to B99-2 and then to R134 and ends at R47-3 for the fuel tank pressure sensor. ?

B136-16 is RG and goes to B83-12 which seems like it’s a shielded ground connector. ?

On Oct 13, 2018, at 2:11 AM, erolo@... [subaruvanagon] <subaruvanagon@...> wrote:

Show quoted text

?

Im pretty sure im looking at it correctly.

B136 is a green connector.
If looking at the back of the connector where the wires feed into the plug, the numbers run right to left.?

Im also fairly certain that these pins (b136-15, b136-16) are missing from the plug. Where do these wires go originally? Im assuming they run through either b21(e2) or b22(e3). Which wires do they connect to? Where can I route them if they need to be re pinned? And why arent they in the original harness?

attached is a color coded ecu pinout that i made.

<2001 Legacy ECM Pinout_Page_2.jpg>

<2001 Legacy ECM Pinout_Page_1.jpg>

<2001 Legacy ECM Pinout_Page_3.jpg>

Re: 2001 legacy EJ25 no Injector pulse

#79221

Im pretty sure im looking at it correctly.

B136 is a green connector.

If looking at the back of the connector where the wires feed into the plug, the numbers run right to left.?

Im also fairly certain that these pins (b136-15, b136-16) are missing from the plug. Where do these wires go originally? Im assuming they run through either b21(e2) or b22(e3). Which wires do they connect to? Where can I route them if they need to be re pinned? And why arent they in the original harness?

attached is a color coded ecu pinout that i made.

Re: 2001 legacy EJ25 no Injector pulse

#79220

b136 is a green plug.

I will double/triple check again tmw. I am checking the plugs from the back of the plug where the wires feed into the ecu. This method/orientation has been correct so far.

I can say with a fair amount of confindence that these pins (b136- 15 and b136- 16) are missing. Where do these wire go originally? Where can i route these wires if i need to repin these? And why arent these in the harness to begin with?

Attached is the ecu pinout that is used with color coding.

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

[email protected]

#79219

I personally would still like to see what the AFR is when it comes back to idle.

Even the IAC steps and maybe MAF airflow (G/sec?)

? heck i don't even know if the software i have can do that on a '99.

Re: 2001 legacy EJ25 no Injector pulse

[email protected]

#79218

The missing wires seem like they may be a clue?

? I'm going to presume you checked the correct 30 pin ECU (B136) plug and from the right end.

?Red / Green should of gone to pin 16

?Red / Black should of gone to pin 15

Re: My first Frankenmotor: So easy a Caveman....

Dale Daugherty

#79217

开云体育

Any 97-99 2.5 sohc short block with the large square relief on top of the piston.?

On Oct 12, 2018, at 12:05 PM, Rob robertduma@... [subaruvanagon] <subaruvanagon@...> wrote:

Show quoted text

?

I have been thinking about doing this for a while.. My motor is from a 95 Legacy so dual-port.?
What short block would?you recommend?

On Tue, Sep 25, 2018 at 9:41 PM dld454@... [subaruvanagon] <subaruvanagon@...> wrote:

?

Fired up my new frankenmotor today. My first one. Most of you know I build 50 or so Subaru motors a year. All types and sizes and have a turbo and racing specialty. This first frankenmotor was the first time I’ve been nervous for a long time.
The recipe was a 1999 2.2 donor engine build out. 1999 2.5 short block from DOHC outback with square top pistons. Also used the 1.5 mil thickness 2.5 DOHC head gaskets.
The heads are single port exhaust, single overhead cam. Heads and block are all phase two.
The customer had requested a bunch of silly internal upgrades on a normally aspirated 2.2. Rather than waste a bunch of money I suggested this recipe for a nice power upgrade from 2.2 to 2.5.
In order to accomplish this successfully in your Vanagon, you must avoid valve to piston contact. What you see above is now a proven recipe to upgrade your 2.2 Vanagon swapped motor.
The customer has promised quantified results in the near future for hp and tq.
Completely rebuilt heads and block. 9 oil pump.

I suggested the frankenmotor for the first time I was responsible for the advice I’ve been giving about the frankenmotor. This unserious name is a good simple upgrade.
If you have a curiosity about the hp and torque improvement I suggest this route for the DIY Vanagon guys.
I don’t have any dyno numbers but the customer has agreed to report on anything he can quantify.
I think this is my first thread post also. Lol

Re: Good source for parts?

#79216

Thanks for the information. I checked out SixStarBernie and he has everything that I am looking for.

Re: 2001 legacy EJ25 no Injector pulse

#79215

After pouring over the ecu pinout again, I noticed that the ecu plugs are missing b136 pin16. this pin is a common ground for what is labeled as 'sensors', atmospheric pressure sensor, throttle position sensor, rear o2 sensor, and engine coolant sensor. The ecu plugs are also missing b136 pin 15, the 'sensor power supply' wire.

Thoughts? Im about 90% sure that I did not modify these wires.?

Re: EJ22 vs EJ25 for simplest conversion?

#79214

For a Westy I would go with a 2.5L. I installed a 2.2 and while it is very reliable, I wish I had just a little more power going uphill.?

I went with the RMW kit after going through a lot of research and am very happy with it.

Highly recomended.

Show quoted text

On Sat, Sep 29, 2018 at 8:38 AM wayne_sitarz2003@... [subaruvanagon] <subaruvanagon@...> wrote:

?

I changed mine at 40-50,000mi because I thought I needed a new water pump. Turned out I didn't need the pump as it was another issue, but the cogged right idler near the water pump failed within 1 year on my replacement Gates kit.

The centre part collapsed and the idler was making contact with the engine block. How did I know? The engine was shaking on start-up one day. I shut it down and checked the timing belt right away. The timing was off and I dodged bent valves. The idler was NSK Made in Japan. Gates is a Subaru supplier in the US. Good luck getting any response from Gates,although I live in Canada. Some Gates kits will have Made in China idlers.

?My OEM belt was about 10 years old and still looked good. MRT Performance in Australia recommended changing them based on time as well (every 5-8 years I think) in one of their videos.

To do it again I would go with a Mitsubishi belt and an Aisin kit.

2001 legacy EJ25 no Injector pulse

#79213

Hello all.?

I have been creeping around the forum quite a bit but havent needed to post anything. great info on here.?

After searching and finding similar problems posted by other members(mostly no spark and no inj pulse), I have yet to get my van started.

I have an 86 van with a 2001 auto legacy 2.5. I did my own harness following Mick at boxerswaps/busaru.?It seems that my injectors are not getting a pulse signal. The injector plug is getting 12v to the?+ pin but doesn't seam to be getting a ground pulse.

Tests i have done so far

Check b+. its good.

Check Ign on power. good.

Check fuel pressure - 38-48psi

Check if inj are clogged. they open and spray if voltage is applied directly.

Checked crank sensor resistance. ~1.8k ohm. Produces voltage as well

Checked cam sensor resistance. ~1.8k ohms. Same

Checked all inj resistance. ~15 ohm

A friend had mentioned an immobiliser. Swapped ecu's x3. no change.?

Backprobed inj ground at ecu. getting ground. tested w a multimeter. 12v when one probe on b+ and other on inj ground.

Backprobed inj ground at bulkhead connector wiring harness side. same result as above.

Backprobed inj ground at bulkhead connector engine side. same result as above.

Tested grounds for cam and crank sensor. same as above.

Tested grounds for ign system, power supply and control systems. same as above.

Tested for voltage at knock sensor. 2.5v close to spec according to my pinout.

Backup power supply has 12v

Relays are working

Timing is on point.

No broken teeth on any of the timing gears.

Cam and crank sensor 'faces' are clean?

Atmospheric pressure sensor swapped. no change.

Cam and Crank sensor swapped. no change.

Ecu swapped. no change. this was swapped with multiple other 2000-2001 legacy ecus. not the same exact numbers but has the same ecu plugs.

Checked engine fault codes. p0463 code. irrelevant.

I am at a loss here. The van will start and run for a sec or two with starting spray but dies soon after.?

Is there a way to test the inj ground that i am missing?

Please let me know if there is anything i should do or if you have any suggestions.?

There still is one wire coming off the gray/brown engine connector that wasnt identified. I dont believe it has anything to do with the injector system but idk for sure. red/green on the gray side. white/blue on the brown side. (This has been identified as a power wire for the purge valve under the manifold)

Thanks in advance.

-Ethan

Re: My first Frankenmotor: So easy a Caveman....

#79212

I have been thinking about doing this for a while. My motor is from a 95 Legacy so dual-port.?

What short block would?you recommend?

Show quoted text

On Tue, Sep 25, 2018 at 9:41 PM dld454@... [subaruvanagon] <subaruvanagon@...> wrote:

?

Fired up my new frankenmotor today. My first one. Most of you know I build 50 or so Subaru motors a year. All types and sizes and have a turbo and racing specialty. This first frankenmotor was the first time I’ve been nervous for a long time.
The recipe was a 1999 2.2 donor engine build out. 1999 2.5 short block from DOHC outback with square top pistons. Also used the 1.5 mil thickness 2.5 DOHC head gaskets.
The heads are single port exhaust, single overhead cam. Heads and block are all phase two.
The customer had requested a bunch of silly internal upgrades on a normally aspirated 2.2. Rather than waste a bunch of money I suggested this recipe for a nice power upgrade from 2.2 to 2.5.
In order to accomplish this successfully in your Vanagon, you must avoid valve to piston contact. What you see above is now a proven recipe to upgrade your 2.2 Vanagon swapped motor.
The customer has promised quantified results in the near future for hp and tq.
Completely rebuilt heads and block. 9 oil pump.

I suggested the frankenmotor for the first time I was responsible for the advice I’ve been giving about the frankenmotor. This unserious name is a good simple upgrade.
If you have a curiosity about the hp and torque improvement I suggest this route for the DIY Vanagon guys.
I don’t have any dyno numbers but the customer has agreed to report on anything he can quantify.
I think this is my first thread post also. Lol

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

[email protected]

#79211

Hi,

I have two installed right now. Original was CV joint type, seemed to work well enough.? However in the name of spending money and tracking down options, I installed a GoWesty speedometer style.? It too works fine.

I don't recall the pulses per rotation, can check. However at the moment it does register the van as "moving".

I can get rid of this issue by installing a fixed pulse VSS to always show the van as moving, but I am picky enough to want a working VSS...

Jason

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

[email protected]

#79210

I actually made my own mechanical neutral switch!?

Photos and some description here:?

It works well and is pretty stout. Whether or not it is doing anything is a separate question.

My gas mileage varies but it's low/mid 20s on highway, and prob 15-18 around town. I haven't checked recently though but I don't feel that I fill up often.? I'll track it one of the next fill ups.

I'm not quite done with this whole issue, still may fiddle with some of the M/T and A/T wiring options, Neutral, etc...

~Jason

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

#79209

I was wondering what kind of VSS you have and how many pulses per rotation? Are you sure it's working properly? Have you tried a different one?

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

#79208

Thanks for taking and documenting the journey.? A great benefit for the rest of us.? A couple follow up questions...

What is "solid gas milage" in your case?

Did you end up putting in a neutral switch?? If so, what kind?

Andy Vanis 505-304-5306

Show quoted text

On Fri, Oct 12, 2018, 6:03 AM jasonpap2002@... [subaruvanagon] <subaruvanagon@...> wrote:

?

Last night I cleaned my exhaust joints and reattached, paying close attention to fit. I added muffler sealant too.? Checked and no leaks that I could find this am.

Went for a drive and my idle stumble is still there...

This may be a feature not a bug and I have spent WAY too many hours chasing it. No CELs and the van gets solid gas mileage and runs great overall. Not much to complain about.

If something else shows up I will post it, but otherwise I need to move on with my life on this particular issue. Thanks to everyone who has contributed, it helped immensely knowing there were some folks interested and available.

~Jason

Re: 1999 ej25 - Odd idle stumble at stop light diagnosis (long)

[email protected]

#79207

Last night I cleaned my exhaust joints and reattached, paying close attention to fit. I added muffler sealant too.? Checked and no leaks that I could find this am.

Went for a drive and my idle stumble is still there...

This may be a feature not a bug and I have spent WAY too many hours chasing it. No CELs and the van gets solid gas mileage and runs great overall. Not much to complain about.

If something else shows up I will post it, but otherwise I need to move on with my life on this particular issue. Thanks to everyone who has contributed, it helped immensely knowing there were some folks interested and available.

~Jason