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Old 10-11-2012, 12:56 PM   #4551
johnfelstead
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Its the same as any subaru, i use my PSI3 monitor and EcuTek Delta Dash to read the codes.
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Old 10-11-2012, 12:57 PM   #4552
Vlad
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The OT2 did not work. One of the guys wrote that a handheld scanner did work.
The problem is understanding the function of each of the OBD2 conductors. There are two which are flopped and some scanners still work, some don't.
I will post the Japanese diagram this weekend.
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Old 10-11-2012, 12:59 PM   #4553
Vlad
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It's not the same as any Subaru, you're confusing people again.
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Old 10-11-2012, 01:01 PM   #4554
PHruska
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Quote:
Originally Posted by Vlad
It's not the same as any Subaru, you're confusing people again.
Thanks. I'd read both answers before and was wondering if anyone had a definitive answer. Hopefully the code is nothing too bad.
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Old 10-11-2012, 01:02 PM   #4555
johnfelstead
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OK, to clarify.

The JDM STi works perfectly well with EcuTek tools and can be read via the PSI3 data monitor.

I dont do open source, so cant help there.
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Old 10-11-2012, 01:04 PM   #4556
kpluiten
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Hey, I'm having some adapters made to run USDM rails on the JDM manifold. I'm doing this because I already had a set of USDM rails sitting around and I wanted to use them.

Would anyone he be interested in a set of these adapters? If there is enough interest, I'll make some additional units. The price would be in the $90-$120 range for a pair of adapters. Perhaps cheaper, but I'm working with the shop now.
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Old 10-11-2012, 01:57 PM   #4557
WhiteBgeye02
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not sure exactly what the problem is. I do ALL OS tuning. learning view works w/ the jdm ecu's. romraider connects fine. ecu flash works fine. just have to have all definitions in the file folders for all three. learning view also can reset the ecu and that jazz!
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Old 10-11-2012, 02:16 PM   #4558
PHruska
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Quote:
Originally Posted by WhiteBgeye02
not sure exactly what the problem is. I do ALL OS tuning. learning view works w/ the jdm ecu's. romraider connects fine. ecu flash works fine. just have to have all definitions in the file folders for all three. learning view also can reset the ecu and that jazz!
I was just trying to figure out if I could
Use a handheld scanner to read a code since I don't have a tactrix yet.
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Old 10-11-2012, 02:50 PM   #4559
Torquey
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It's a hit or miss. I had Autozone try it and theirs (orange device) had a link error reading the JDM ECU. But then Oreilly's accross the street was able to read it fine (green & black device), but they had a different brand scanner. So my suggestion would be to try he local auto parts places, before buying your own... rather spend that money on a tactrix cable.
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Old 10-11-2012, 03:02 PM   #4560
Vlad
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I'll post the diagram later and you will have to trace it with the diagram of the USDM year that you have, but here is some stuff:

Pin 6 from the OBD2 connector, called "data link connector" in USDM harness gets taken to "flash memory connector", to pin 2

Pin 6 in the JDM harness gets taken to "line end check connector", pin 4.

Pin 8 in the JDM harness gets taken to "line end check connector" port 3
Pin 8 in the USDM harness gets taken to ECU A20

There is a connection in port 20 with the JDM ECU, but goes to line end check connector in port 6.
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Old 10-11-2012, 03:04 PM   #4561
PHruska
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Quote:
Originally Posted by Torquey
It's a hit or miss. I had Autozone try it and theirs (orange device) had a link error reading the JDM ECU. But then Oreilly's accross the street was able to read it fine (green & black device), but they had a different brand scanner. So my suggestion would be to try he local auto parts places, before buying your own... rather spend that money on a tactrix cable.
Well I was planning on getting a tactrix to tune. I have to do an e tune since there are no tuners anywhere near me.

I'm reading codes P0365- camshaft position sensor B circuit (bank 1)

Guessing the avcs wiring.... Here we go.
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Old 10-11-2012, 03:07 PM   #4562
Vlad
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Basically, except for pin 6, the rest should line with the same pins in the ECU.
once you take the JDM ECU and plug into the USDM harness, you have direct access to pin 8, while with a Japanese complete car, you'd have to bridge two pins in the check connector, to gain access to pin 8.

I am reasonably sure that "data link connector" is the OBD2 connector.

And as far as the rest, All the lap-top based systems work, they probably use the same pin. I also had the Ecutek data monitor and mine worked as well.

As far as OBD2 standards, there are several ISO protocols and they may use different pins.

Maybe some scanners are multi ISO nad those work and some are not so universal and don't, I'm not sure.

I saw that my Innovate OT2 does not work and my Easyscan does not work and yes, I have received several reports that several handheld universal scanners do work.
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Old 10-11-2012, 03:13 PM   #4563
WhiteBgeye02
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well thank gosh for tactrix universal 1.3 w/ mitsu scan! and free software ftmfw!
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Old 10-11-2012, 03:38 PM   #4564
PHruska
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So is P0635 more likely a bad sensor or bad wiring? Where exactly is the solenoid? Im trying to look these things up but no luck so far.

Should I let the engine warm up all the way and see if if goes away since cold seems to have been a factor for some?

Now im pulling a P0519- Idle air control circuit performance as well. Only comes on once the engine is warm.
thats just that i need to take apart the IAC and clean it/replace the gasket right?
there is also no power steering fluid in the car which i read can be an issue to throw the code. there is a massive PS leak i cant find.
it was idling about 1500rpm warming up then it instantly dipped to ~850 and so i killed it and read the codes.

Last edited by PHruska; 10-11-2012 at 08:13 PM.
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Old 10-11-2012, 04:28 PM   #4565
Vlad
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So, turns out from the homologation sheets (which info I will integrate), that the OEM actuator on the VF37 is 12.3 PSI.
Many thought it was 7, 8, or 9 PSI.

More to come...
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Old 10-11-2012, 05:41 PM   #4566
PHruska
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also, is this how you guys are running the 02 on the DP?

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Old 10-11-2012, 07:22 PM   #4567
johnfelstead
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Quote:
Originally Posted by Vlad View Post
So, turns out from the homologation sheets (which info I will integrate), that the OEM actuator on the VF37 is 12.3 PSI.
Many thought it was 7, 8, or 9 PSI.

More to come...
You're welcome.
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Old 10-11-2012, 07:53 PM   #4568
Vlad
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Oh, thanks.

But this can hardly be a one-way street for you.
Take the time to look around, you will find info which you can use.

I had used the info at Sti.jp before, but I never went into the homologation section.
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Old 10-11-2012, 07:55 PM   #4569
Vlad
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So here is the diagram for OBDII. This is from the 2005 JDM wiring diagram.
Of course, you will have to put the 2002 wiring diagram side-by-side (mine is caught in the background) and then you'll see what I wrote.

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Old 10-11-2012, 11:31 PM   #4570
WhiteBgeye02
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Quote:
Originally Posted by PHruska View Post
also, is this how you guys are running the 02 on the DP?
really? im sorry but had a hell of a day and when i saw this i felt like its the newb section all of a sudden. its just a O2 bro. run it were you wish. i got mine in the DP toward the bottom for smoother air transition and less turbulence. all preference.
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Old 10-11-2012, 11:46 PM   #4571
JRsleeper
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^ I agreed at first. But I think he's asking about the wire for the o2 sensor.

I ran mine the same way as the pic with a loop towards the firewall.

I used a zip tie with a eyelet and screwed it to the firewall to keep the wires off the downpipe.
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Old 10-12-2012, 01:37 AM   #4572
PHruska
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Quote:
Originally Posted by WhiteBgeye02 View Post
really? im sorry but had a hell of a day and when i saw this i felt like its the newb section all of a sudden. its just a O2 bro. run it were you wish. i got mine in the DP toward the bottom for smoother air transition and less turbulence. all preference.
really? no need to be a dick in all honesty. at this point, i followed the ds1 wiring for avcs about as closely as possible and im still throwing an avcs code that i cant figure out.
im just trying to make sure i do stuff in a not dumb way. and in all honesty this is the first time ive done more to my car than change struts. i was actually asking about the harness. i had to take that one off the up pipe from the 205 since its the only thing that had a harness that was compatable with car side. i thought it was an egt sensor not an 02 so i just wanted to double check.

and anyone on is P0635 more likely a bad sensor or bad wiring? Where exactly is the solenoid? Im trying to look these things up but no luck so far.



Now im pulling a P0519- which i read somewhere no power steering fluid could throw this, is that true? im just going to do a IACV gasket and cleanin and see how that helps.
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Old 10-12-2012, 06:47 AM   #4573
johnfelstead
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I would think P0635 is to do with a bad wiring connection on the power steering presure control, or it's having impedence issues due to a lack of fluid in the pump, which is affecting the load on the control circuitry. As far as i know there are no sensors on the PS, just the pressure control system power feed. The power steering pump has a single electrical connector, you should be able to see that easily near the pump assembly.
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Old 10-12-2012, 08:18 AM   #4574
todeswalzer
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Quote:
Originally Posted by PHruska

really? no need to be a dick in all honesty. at this point, i followed the ds1 wiring for avcs about as closely as possible and im still throwing an avcs code that i cant figure out.
im just trying to make sure i do stuff in a not dumb way. and in all honesty this is the first time ive done more to my car than change struts. i was actually asking about the harness. i had to take that one off the up pipe from the 205 since its the only thing that had a harness that was compatable with car side. i thought it was an egt sensor not an 02 so i just wanted to double check.

and anyone on is P0635 more likely a bad sensor or bad wiring? Where exactly is the solenoid? Im trying to look these things up but no luck so far.

Now im pulling a P0519- which i read somewhere no power steering fluid could throw this, is that true? im just going to do a IACV gasket and cleanin and see how that helps.
The egt uses a different, smaller, connection
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Old 10-12-2012, 11:21 AM   #4575
Vlad
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The '06 Spec C fuel pump is homologated at 3.75 liters per minute @ 300 kPa. This means 59.4 gal/h @ over 40 PSI, the same as a Walbro 255 hi pressure version.

I think the way to do this is to look at Group N parts list for the year. If there's no pump there, it's stock. There's no pump there...

Strange is that japanparts is not listing this kind of flow with their "upgrade pumps" offers.

i can backtrack the '06 Spec C fuel pump part number and see who else has that part number.

This would be a safe alternative to a Walbro 255, they do fail sometimes.
I wonder if my local injector shop can test a fuel pump...

Last edited by Vlad; 10-12-2012 at 11:32 AM.
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