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Old 06-20-2017, 10:15 PM   #11376
Titter
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EJ207 Spec C 4EAT

Default EJ207 Owners?

my mishi cap is fine. over a year no issues.

it has to go on the expansion tank not the rad.
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Old 06-21-2017, 12:16 PM   #11377
Samurai Jack
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Quote:
Originally Posted by Gigs90 View Post
or just Mishimoto is crap works lol
Haven't had a problem yet with my Mishimoto radiator
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Old 06-21-2017, 12:20 PM   #11378
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Originally Posted by Samurai Jack View Post
Haven't had a problem yet with my Mishimoto radiator
I have seen a bunch start leaking unfortunately
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Old 06-21-2017, 12:34 PM   #11379
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Originally Posted by D-Rodman View Post
I've been having an issue with my car that I considered to be related to the idle air control valve. On hot days sitting on idle or when sitting in traffic for a bit the car would start idling high. the idle would start rising above 1000 rpm and get up to 3-4000 rpm. Once I'm able to get the car moving on the highway for a bit the idle would return to normal. Other times the condition manifest when I've been driving the car, everything normal, I make a quick stop and turn the car off. When I get back to the car and fire it up the idle will be high, once again, getting on the road for a bit and the idling returns to normal. Saturday I installed a brand new OEM Idle air control valve but to my surprise after driving the car and it operating perfectly normal I made a stop and turned the car off for about 10-15 minutes. When I fired it back on it started to idle just above 1000 rpm. Now I don't understand what is happening, why the issue ? Seems to be related to the coolant temperature. Could it be that I installed the thermostat upside down ? Your help input is always appreciated.
Have you changed the IAC? Or cleaned the port?
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Old 06-21-2017, 02:10 PM   #11380
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Yes, I installed a brand new oem IAC, today the car started to high idle, I pulled over and opened the hood to take a look at the throttle body mechanism where the throttle cable is attached. I think I just need to slack the cable, I pushed the mechanism to the closed position and the idle normalized. I'll report back after I adjust the cable.
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Old 06-24-2017, 08:12 AM   #11381
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I rerouted the cruise control cable and gave the throttle cable a little more slack. No more mysterious high idling, problem fixed.
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Old 06-24-2017, 11:19 PM   #11382
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Default Fuel leak

Hey guys, just swapped a ej207 v7 into my '03 wrx and after the fuel pump primes it leaks like crazy from here, I have no idea how to fix it. Located rear right, above charcoal canister. I pulled it out from that hole at the top

http://i.imgur.com/Q1a994P.jpg

http://i.imgur.com/wkMnzcC.jpg

Last edited by Rsmith954; 06-24-2017 at 11:27 PM.
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Old 06-26-2017, 05:02 PM   #11383
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I have my version 9 setup and ready to go but I have this cam sensor code po365. Anyone know if it's related to avcs function or anything like that? I have yet to get the car tuned and I'm pretty sure I have to invert the function of the neutral safety switch for the avcs to work. If its not due to that then the sensor must be faulty, I tried taking it out but it seems I have to disconnect the avcs solenoid to remove it which will be a pita. car runs real smooth otherwise with an idle around 700 rpm. It's getting registered this week and I'd like to figure this code out before I send it to be tuned. Any input would be great. Thanks.
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Old 06-27-2017, 08:27 AM   #11384
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Quote:
Originally Posted by Rsmith954 View Post
Hey guys, just swapped a ej207 v7 into my '03 wrx and after the fuel pump primes it leaks like crazy from here, I have no idea how to fix it. Located rear right, above charcoal canister. I pulled it out from that hole at the top
Well, you know generally where the leak is coming from, but before you can do anything, you will need to determine what exactly is causing the leak itself.
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Old 06-29-2017, 02:49 PM   #11385
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Quote:
Originally Posted by Rsmith954 View Post
Hey guys, just swapped a ej207 v7 into my '03 wrx and after the fuel pump primes it leaks like crazy from here, I have no idea how to fix it. Located rear right, above charcoal canister. I pulled it out from that hole at the top

http://i.imgur.com/Q1a994P.jpg

http://i.imgur.com/wkMnzcC.jpg
Did you figure it out? If not, brake clean the area, let it dry, then have someone else prime the car and watch for where the gas is coming from. A ziptie would probably fix it.
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Old 06-29-2017, 07:50 PM   #11386
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Quote:
Originally Posted by Master467 View Post
Did you figure it out? If not, brake clean the area, let it dry, then have someone else prime the car and watch for where the gas is coming from. A ziptie would probably fix it.
No, havent fixed it yet. The gas is coming from that cylinder thing in the middle that is open
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Old 07-01-2017, 06:34 PM   #11387
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Quote:
Originally Posted by Rsmith954 View Post
No, havent fixed it yet. The gas is coming from that cylinder thing in the middle that is open
Double check your fuel lines from the firewall to the manifold. I can't remember the order off the top of my head but I can go look at mine if you need me to.
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Old 07-02-2017, 12:46 AM   #11388
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Quote:
Originally Posted by ether947 View Post
Double check your fuel lines from the firewall to the manifold. I can't remember the order off the top of my head but I can go look at mine if you need me to.
They seem to be correct from the diagram I looked at. Here is a pic, sorry its a mess.
From the firewall, the bottom goes to the filter, middle goes to middle, top goes to bottom which is not connected rn, just took it off to replace it with a new line.

http://i.imgur.com/jKaeIvF.jpg
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Old 07-02-2017, 08:53 PM   #11389
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Default EJ207 Owners?

Can anybody tell me what gauge wire is the factory STi ground that goes from the firewall to the transmission?
I'm using the original wrx wire, looks ok but I have the intercooler out to inspect for blowby and bleed the clutch. Tuner asked to check all grounds due to possibility of weak spark. From looking at pictures on google, I get the impression the wrx ground wire is a narrower gauge than the STi. Your help is greatly appreciated.
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Old 07-03-2017, 01:19 AM   #11390
Rsmith954
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Quote:
Originally Posted by D-Rodman View Post
Can anybody tell me what gauge wire is the factory STi ground that goes from the firewall to the transmission?
I'm using the original wrx wire, looks ok but I have the intercooler out to inspect for blowby and bleed the clutch. Tuner asked to check all grounds due to possibility of weak spark. From looking at pictures on google, I get the impression the wrx ground wire is a narrower gauge than the STi. Your help is greatly appreciated.
10 or 8 should be just fine
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Old 07-06-2017, 08:23 PM   #11391
ether947
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Quote:
Originally Posted by Rsmith954 View Post
They seem to be correct from the diagram I looked at. Here is a pic, sorry its a mess.
From the firewall, the bottom goes to the filter, middle goes to middle, top goes to bottom which is not connected rn, just took it off to replace it with a new line.

[img]http://i.imgur.com/jKaeIvF.jpg[img]
Hmmm, here's what I have:

Firewall -> Manifold
Top -> Middle
Middle -> Bottom
Bottom -> Top

My filter is in the tank now (STi hanger).
http://i.imgur.com/nANagnF.jpg
http://i.imgur.com/cF6LQwC.jpg
http://i.imgur.com/Lk88kBA.jpg

Looks like your vapor line is connected to the return line spot.
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Old 07-25-2017, 11:27 PM   #11392
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Hey brohams. My swap is giving me some issues finally. Version 8 ej207 into an 04 wagon, been running fine for years now. Just recently popped two CEL codes:

P0365 Camshaft position sensor B circuit bank 1

P0519 Idle air control system performance.

It's running like hot dick and I'd like to get it fixed. Any suggestions?
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Old 07-26-2017, 01:20 AM   #11393
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Quote:
Originally Posted by Psychoreo View Post
Hey brohams. My swap is giving me some issues finally. Version 8 ej207 into an 04 wagon, been running fine for years now. Just recently popped two CEL codes:

P0365 Camshaft position sensor B circuit bank 1

P0519 Idle air control system performance.

It's running like hot dick and I'd like to get it fixed. Any suggestions?
Have you already cleaned and serviced the IACV? Are you getting weird idle. When does the CEL come on after you reset the ECU?
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Old 07-26-2017, 09:05 AM   #11394
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Quote:
Originally Posted by iNfEk View Post
Have you already cleaned and serviced the IACV?
I have not.

Quote:
Are you getting weird idle.
Yep. It's hunting for idle both when the code is active and when it's been reset. When the code is active it also runs like dog **** at low RPM/idle.

Quote:
When does the CEL come on after you reset the ECU?
Not sure. It turned off for a day by itself before it came back. Last night was the first time I reset it.
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Old 07-26-2017, 11:41 AM   #11395
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Check the rear cam sensors for oil contamination. For whatever reason, over time the rear sensors crack and allow oil into the electrical connection area. Thankfully, the replacement sensors (JDM specific), include a new sensor and pigtail wiring. if you do end up needing to replace these sensors, or even a solenoid, keep in mind that we have these items in stock at our Colorado based office.
[email protected]
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Old 07-26-2017, 02:17 PM   #11396
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Quote:
Originally Posted by IA Performance View Post
Check the rear cam sensors for oil contamination. For whatever reason, over time the rear sensors crack and allow oil into the electrical connection area. Thankfully, the replacement sensors (JDM specific), include a new sensor and pigtail wiring. if you do end up needing to replace these sensors, or even a solenoid, keep in mind that we have these items in stock at our Colorado based office.
[email protected]
I did some looking around, the driver side AVCS solenoid and cam sensor area has lots of oil residue. I didn't see any wet oil to identify exactly where it's coming from though.

Is there another sensor on the back side of the motor or are you talking about the connector on the back side of the solenoid? It's been a while since I've had to take one apart.

http://i.imgur.com/HsUObom.jpg
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Old 07-26-2017, 03:22 PM   #11397
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The sensor in the image is teh front cam sensor. There is an identical pair of them on the cylinder head towards the firewall. One on each side of the motor, with one just in front of the turbo.
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Old 07-26-2017, 03:26 PM   #11398
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Originally Posted by IA Performance View Post
The sensor in the image is teh front cam sensor. There is an identical pair of them on the cylinder head towards the firewall. One on each side of the motor, with one just in front of the turbo.
Thanks. I'll take a look tomorrow but the front sensor/solenoid may just be the problem. That whole quadrant of the engine bay is covered with oil residue.
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Old 07-31-2017, 10:57 AM   #11399
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Originally Posted by Psychoreo View Post
Thanks. I'll take a look tomorrow but the front sensor/solenoid may just be the problem. That whole quadrant of the engine bay is covered with oil residue.
I've narrowed it down to that front sensor/solenoid. If there's oil residue that would indicate an issue with the solenoid instead of the sensor, yes?
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Old 07-31-2017, 04:25 PM   #11400
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Hey guys, this is a really helpful thread but I wish there was a whole ej207 forum.

I recently completed a V8 EJ207 swap into my 94 Impreza. Before the EJ207, I already had a 2003 USDM EJ205 installed with a merged harness and a GD WRX cluster. I had that setup for a few years and everything worked great. Now that I swapped the EJ207 and V8 ECM in, my Check Engine Light does not work. The only changes I made to the harness were to wire in a patch wire harness for the AVCS and rewired the TGV wires for AVCS on the other side. Any ideas?
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