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09-18-2014, 10:55 PM | #26 | |
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Vehicle:2006 STIROID 10.5@131 on 29psi |
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09-19-2014, 09:21 AM | #27 |
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Vehicle:2004 Impreza WRX WR Blue |
jdmracingmotors.com
So far they've been really helpful. It was actually low compression in cylinder 2 (got my cylinders mixed up). Headed back to the shop today to continue troubleshooting. |
09-20-2014, 04:17 PM | #28 |
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jdm swap
You never really know what you are going to get with those engines. Id get the short block redone with forged pistons while its out, probably a ring land :/.
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09-30-2014, 03:34 PM | #29 |
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10-02-2014, 05:38 PM | #30 |
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Vehicle:2004 Impreza WRX WR Blue |
Hooked the avcs wiring harness to my jdm ecu, no change in cyl 2. Cleaned up the crank position sensor, no change. Reset the timing by hand, no change, but I'm paranoid that the engine may not have been at perfect TDC.
I've heard people claiming that you need to change the crank and cam sprockets, but I dont think that's going to help with my compression. Also, was wondering if a tune could remedy the timing issue. |
10-09-2014, 03:37 PM | #31 | |
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10-09-2014, 03:39 PM | #32 |
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I got my JDM ej205 today. I'll be testing compression on both motors to see if they are actually the same.
I read here on a previous post it was recommended to use the USDM exhaust manifolds and uppipe? Why? Another thing this myth about JDM engines etc... My motor had a sticker on the timing belt cover saying the belt was changed @ 130,000 km in 2011 so that's 80k+ miles which sucks kinda Last edited by elmech; 10-09-2014 at 03:58 PM. |
10-11-2014, 01:23 PM | #33 |
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Well, so much for JDM. I pulled the intake and looked in the cylinders while moving the engine #4 has lots of oil and even the plug was soaked and full of deposits. Now I have to reassemble and send it back.
I'm thinking I should just order a new 2.0 shortblock and be done with this nonsense. |
10-12-2014, 11:51 AM | #34 | |
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Vehicle:2002 Wrx Silver |
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10-14-2014, 05:36 PM | #35 |
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Hello,
I installed a 2005 JDM ej20 with AVCS into my 2005 WRX. I installed the ia AVCS wiring kit, along with a JDM ECU. I have a Tactrix Openport 2.0 cable and am using the EcuFlash program. I am having a problem trying to read the JDM ECU. I have sent a debugging log to Tactrix support and I have been told that there seems to be a wiring issue between the OBD2 and the JDM ECU. Is there a difference in wiring between the OBD2 and ECU from USDM to JDM? Does anyone have access to JDM wiring schematics? Does anyone know how to properly communicate with The JDM ECU for CEL or emissions test? |
11-05-2014, 07:26 PM | #36 | |||
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11-05-2014, 07:29 PM | #37 | |
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11-06-2014, 08:53 PM | #38 | |
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Vehicle:2004 Impreza WRX WR Blue |
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Could swapping the sprockets fix a compression issue/dead cylinder? Update on the swap: There hasn't been time or money enough for me to get the jdm engine running properly, so the Subie's just sitting. I'm hoping the car gets to see some snow under the tires this winter. |
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11-13-2014, 01:28 AM | #39 |
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Vehicle:2004 Subaru WRX Wago sliver |
No you probably have a bent valve and no wiring or cam gear is going to fix it. The best this to do is take off the valve cover and check the valve lash on the cylinder that you are having issues. If you do have a bent valve you will be able to tell because the lash will be much larger then the rest.
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11-21-2014, 11:54 AM | #40 |
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Vehicle:2002 WRX Wagon WT |
JDM swap
I just put a JDM ej205 NON-AVCS into my 2002 WRX. It runs great, but needs a tune. The crank and cam gears have to be USDM to use US ecu, as the signals are different. My JDM engine has 9:1 compression instead of 8:1 this is the main reason for the tune. 91 octane will detonate if overboosted into this engine. The shop that will be tuning my car ran the code on the timing cover of the JDM engine and verified the 9:1 compression and told me what year and car it came out of. I kept the JDM turbo and pretty much changed everything else outside the longblock. I cleaned and reused the coolant/oil cooler, contamination is not an issue because the oil is filtered AFTER the cooler. Exhaust and intake manifolds are different. If anyone has questions, let me know.
Last edited by Offroadguy; 11-21-2014 at 12:10 PM. |
11-28-2014, 06:27 PM | #41 |
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just purchased a non avcs jdmej205 jdmenginebay in hayward ca for $1200 out the door and its a pretty straight forward swapping of parts.
has anyone ran a non tgv jdm intake manifold with side feeds on a usdm car? if so any info on this? |
12-19-2014, 03:37 PM | #42 |
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Vehicle:2002 WRX GG>> 2016 Focus RS |
Please list the TURBO that came with your JDM engine AND IF YOU KNOW was it from an AT (flexplate) or Manual equipped WRX.
Thanks Td |
12-19-2014, 03:54 PM | #43 | |
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Vehicle:2002 WRX GG>> 2016 Focus RS |
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- What year is the engine? (I've read the JDM non-AVCS were plug-n-play on the cam/crank gears.) - What turbo did it come with? - How to ID the engine for compression? (If 9:1, it MUST have a re-tune.) - Where'd you get the engine? - Thanks |
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12-26-2014, 11:09 PM | #44 |
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Questions, please:
- What year is the engine? (I've read the JDM non-AVCS were plug-n-play on the cam/crank gears.) - What turbo did it come with? - How to ID the engine for compression? (If 9:1, it MUST have a re-tune.) - Where'd you get the engine? - Thanks[/quote] Bump? Looking for these answers as well. |
12-28-2014, 12:06 AM | #45 | |
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^^^Here's what I was told via email
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01-06-2015, 01:46 PM | #46 |
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I'm going to be doing this swap over the next few days, I've got a friend who do it a few weeks ago. In order to get it to work, you have to swap the 4 cam gears, the crank gear, the sensors to usdm ones and the intake manifolds, as well as the headers. The engine I'm getting is out of a forester xt. I'll let you all know how it goes, I plan to have it started by Friday
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01-06-2015, 11:24 PM | #47 |
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Vehicle:2004 WRX |
I have been looking at Jdm EJ205's and the only real difference I can see, externally anyway, are the newer motors have coil packs and the older ones have spark plugs. Can you run one of the older motors with coil pack setup, as long as, you are swapping the harness and everything to run US ecu?
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01-08-2015, 04:59 PM | #48 | ||
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Vehicle:2002 WRX GG>> 2016 Focus RS |
BUMP for applicable JDM model years that will work in '02-'05 WRX.
From Wikipedia it's 1999+ Quote:
Other NASIOC EJ205 threads Quote:
List of JDM ECU 's (in Excel-CHECK THE TABS on the bottom for different markets), ECUTEK - Supported Vehicle List and a pic of a similar list in HERE. Last edited by wtdash; 01-16-2015 at 10:10 PM. |
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01-10-2015, 01:05 PM | #49 |
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Vehicle:2002 WRX Wagon WT |
Sorry for the delay, still new to this site.
The JDM engine had a flex-plate on it that bolted right up to my torque converter. Yes, mines an automatic The turbo looks identical, so I used the JDM, waste gate and all. The JDM intake manifold had no TGVS on it so I used the USDM one. I don't know how hard it would be to make the JDM intake work, it would flow much better for sure and the retune would be able to negate the DTCs being set. I'm not sure what years of engines will work best. You shouldn't have to change all the timing gears. I changed the crank gear and one cam gear, the ones with the sensors on them. I kept the JDM crank and cam sensors. Got lucky, my engine knock was the timing belt tensioner rattling. I compressed the rod on the tensioner too fast and blew out the seal on it when I changed the timing components. Here is a pic of the rear of the crank pullies, you can see the signal sent to the ecu is different. http://i.imgur.com/SqWVWnr.jpg Last edited by Offroadguy; 01-10-2015 at 05:40 PM. Reason: posting pic |
01-13-2015, 08:24 PM | #50 |
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I can see TD40L on my JDM turbo installed in the car. I might be able to get more numbers if it helps.
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