Oil pressure switch is green/orange, MIL/CEL is red/white, and temp is pink/white for the 2002 EZ30. The engine has been running great, no stalling or anything, makes decent power. So the pinouts are completely different. Here is the pinout looking at the connector: The black/red is 12V with the igntion on, comes from the main relay I think. Violet/green is the signal wire that should go to pin 21 B134 on the ECU. any rotary or diesel engine is not under warranty and sold as is. Make sure to get one of those and not the VSS though. That pin on the sender reads about 1k ohm to ground. However an inexpensive engine does not mean an inexpensive project. Since we'd plugged the ignition switch from the 99 into the 2002 harness, the 99 harness end was just hanging loose. It is grounded when the oil pressure is low. We haven't had any codes in a while but just have it wired to think it's in drive all the time. I plugged the connector from the 99 that goes to the compressor into the H6 compressor. The stock radiator. By far the hard part is merging the EZ30 engine harness to the Impreza dash harness. I used the hammer and chisel sparingly on the parting line and threaded some bolts into the engine and hammered on those. Main fan is driver's side, sub fan is passenger side. Official H6 swap thread FAQ What are the major issues in this swap? One good thing about this setup is that we could just unplug the compressor or compressor relay and turn the switch on to run the fans if it's running hot. It goes by many names, most commonly the Subaru H6, EZ30, EZ30D or EZ30R. So recently I've been wanting to swap the h4 out with the h6 engine because I feel the 2.0 h4 lacks on torque when either carrying weigh, or on a steep off road hill. It was designed and intended for installation in heavy vehicles of Subaru brand (SUVs, etc. Is it that crazy? They both are on connector B21 going to the EJ25 engine, the pinout is as follows: Pin 9 is green or green/white depending on which side of the connector you're using. gonna attempt to swap the engine, trans, and rear diff. As I understand it, this is the only way to use a later EZ30 or EZ36. So I spliced that into the red/white wire coming from the EZ30 ECU. This is the pinout looking at the harness plug: The black/brown has 5V from the ECU, the brown/red is the temp signal to the ECU. The 99 system is pretty simple. Seemed like the main reason to have the dash plugged in was the alternator wouldn't charge without it and it would cause the fuel level code. ... JDM 2000 2002 Subaru Legacy 3.0R Outback 3.0R Tribeca H6 EZ30 Engine 6-cyl. I'd recommend using the H6 radiator as the radiator hoses will be much simpler that way. 2000-2002 subaru ez30 3.0l h6 6 cylinder engine, outback legacy tribeca 2000-2002 SUBARU EZ30 3.0L H6 6 CYLINDER ENGINE, OUTBACK LEGACY TRIBEC... Special Price: $945.00 I would definitely recommend doing a manual conversion in a six cylinder car rather than swapping one of these engines in a different car. The ATF temp light flashed when we still had the 2002 instrument panel connected, but never gave a trouble code. This would definitely be less wiring to fit in the car than the way we did it, but you'd really have to know what you're doing and be confident you're not going back to the stock engine. I had a 47 ohm resistor between the 12V ignition source and the alternator. One thing to do is to wire resistors in place of the solenoids. This first post will cover the wiring. Not sure about the overall powerband though, it could be worse. May not last but it's a nice thought. The TCM needs to be grounded, so ground pins B9 and B19 (brown/white wires) of the TCM. Eventually I just wired the brown / white wire that went to pin 27 of the 99 EJ25 ECU to pin 25 B135 (brown/black?) At the top of the picture are the 10W resistors we wired to the TCM so it thinks it's still hooked up to solenoids. The 2002 system is much more complicated. Exhaust will go to the driver's side anyhow, so I'll just tweak the stock system for now to fit. Totaled : … Connect this to the green/orange wire for the EZ30. This is for the fan relay and sub fan relays 1 & 2. JDM Subaru Forester 00-03 2.0L Replacement Long Block Swap EJ20 EJ203 EJ253. The third is to pin five of the white connector for the cruise control module. I think I just cut that wire and haven't had any codes since. I plan on getting it tuned sometime and I've heard they can keep some of those from coming up. It helps to put a jack under the front of the trans so the engine isn't holding it up while you're trying to separate them. To test the fans, you can put a resistor in place of the temp sensor. "Subaru made it bolt right up, iWire makes it plug right in." Easy way to do this is to go from the big green wire in the 2002 harness (see below for a convenient place to shove a spade terminal in that) to the harness of the car you're putting this in. The black blue wire at pin 64 (third row) of the EJ25 ECU goes to the tach. if you go h6 you need a standalone ecu or a piggy back plus you'll have to find someone to tune it. The other side of fuse 18 goes to three green black wires. The green/black wire disconnected will cause a P1400. The EZ30 was refreshed in 2003, and when the Tribeca was introduced for the 2006 model year in January 2005, the EZ30 II was the sole engine option. is this reasonable or am i gonna regret it? If you want the wipers, power mirrors, and other accessories to keep working on the Subaru you're putting this in, you'll have to power both the ignition and accessory circuits. The 2002 H6 compressor seems to have different thermal overload wiring than the 99, so I hotwired that. The radiator setup will be another tricky part. I do get some trouble codes related to evaporative pressure, fuel temp, and I did get a mixture lean code once. so far ive found:-radiator needs to be moved forward under the crossmember, adding 2 cyl to the front of what you already had losses space. I forget what color that one was. here is a datalog I really got to rewire alternator before doing mush else, TPS still giving terrible signals. If you cant find what you need here, I would go on rs25.com and post in the swaps thread. Bottom line, you need to have 12V (switched on with ignition) going to pin 1 (black/white wire) of the alternator. Final confirmation was cutting them and then grounding the CEL/MIL and oil pressure to see them light up. The biggest downside is that it doesn't turn off at full throttle. We did it! The new motor is producing 250 horsepower to the wheels but the owner’s goal is to make 313 horsepower. Debated putting the 02 instrument cluster in the 99 but physically it's surprisingly different and electrically it will probably be simpler to keep the 99 instrument cluster. Some of them were easy to confirm by testing for continuity on the well labeled circuit board to the pins on the top of the instrument cluster. For Subaru’s larger cars a little four-cylinder isn’t quite enough. I actually have that and the neutral wire (light green/black pin 1) on a toggle switch so I can ground one or the other, but just leave it in drive. The FSM showed one of the wires going through the battery idiot light. Didn't wind up cutting or splicing any wires for the OBDII connector, but there are really only four pins on it that matter. I cut this at the TCM and connected the VSS from the 99 five speed to it so it sends a VSS to the ECU (pin 1 B134), speedo, and the CCM. The engine/ trans will bolt in- that's the easy part. Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc. Pin 8 is pink/white and goes to the temp sensor. But we should mention that this 3.6 liter motor is more reliable than EZ30. The next easiest is probably to buy an engine from a junkyard and use a standalone ECU. The 99 VSS has three wires, I believe they are red/black = 12V, green/black = signal, and black/red = ground. That was very easy to wire up and works great. It has four big wires, black yellow, red yellow, red, and blue red. One of the last wiring projects was the air conditioning. Take the yellow and red/white wires at the compressor plug and splice them together. The main code we kept getting was the fuel level code, P0463 I think. What flywheel and clutch works? One of the last things I did before we pulled all the wiring out was to figure out the feeds for the various gauges and idiot lights. Exhaust from the H6 almost fit the 99, some modification will be required. The 2002 FSM seems to have the right wire colors but the pinouts for the instrument cluster are different than the actual gauges. There is another wire that goes to the ECU that I assume tells it you have the AC switched on. We wanted to use the accessories on the H6 since the pulleys are different and it would make things much easier. I wired up a four pole switch to ground the AC compressor relay, fan relay, main fan relay 1, and sub fan relay 1. I spliced the green/black and brown/yellow wires to the other side of the resistor. I didn't wind up doing it this way, but since the 2002 FSM is inaccurate regarding the instrument panel wiring, here is a little info on that. There is quite a bit of wiring involved to keep the TCM, and therefore the ECU, happy. We'll send you back a custom plug and play harness that keeps the amenities of your car while adding … We traced them back to the ECU and wired in some resistors as follows. The next posts will cover the plumbing and mechanical issues. pontoontodd, February 27, 2017 in Subaru Transplants. Newer Generations of Subaru discussion 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX Notes from EZ30 engine swap with JDM The green black wire that goes from the transmission control module (TCM) to the CCM pin 3 is for vehicle speed. If you're not running in a lot of dust like we do, you can skip this. The brown wire at the bottom of the plug is just for the gauge. There is a wire for the AC compressor relay the ECU grounds. 2 talking about this. The engine/ trans will bolt in- that's the easy part. Introducing the new custom head stud for the EZ30R and EZ36 6 cylinder engines. The H6 is definitely longer, maybe only an inch, but there is no way any Subaru fans are going to fit between the radiator and the engine. Re: MS3 pro EZ30 Subaru swap sync loss by kamotors » Fri Nov 14, 2014 9:04 pm got it, its up and running on the newest alpha 6 now. It seemed with everything hooked up this would get 3V but when we tried to just give the EZ30 ECU 3V at that pin we'd still sometimes get the code. The 99 is pretty simple so it was fairly easy to hotwire the AC. For the most part, mechanically this swap is simple since it's Subaru into Subaru. This engine has the same problems as EZ30, HERE you can learn more about them. To top it off, the TCM I/O signal chart in the 2001 FSM shows the pinouts for three connectors. After all, ECUtek do cover the ECU for the EZ30 engine. This is where the flat-six engine comes into play. TJ 99 LGT H6 Limited OBP A little bit of Wrx, a little bit of 2.5RS, a little bit of STi , a ... With a manual swap the TCU is wired to think that it is neutral full time. The easiest thing to do is to splice the white/blue and white/green wires together near where they plug into the trans. Here are the fuses we needed: The big green wire, pin 8 of the first gray connector, supplies fuses 11, 17, and 18. Howling H6 Ez30 engine, 6 speed rwd transmission from a Subaru BRZ swapped into a 1998 Legacy GT. By far the biggest headache is the wiring, especially since it means removing both dashboards and HVAC systems to get at it (and putting one of them back in eventually). If you're not going to have a Subaru automatic, you need to get around the inhibitor switch. On a side note, the turn signals won't work if you don't have the hazard switch plugged in. One thing I did before installing the H6 was to RTV that plastic cover for the torque converter bolts back in. I would recommend 1000 ohm 10W or they will get pretty hot. You need to be a member in order to leave a comment. a wrx swap is so much easier and you can do so much more with it. Since you seem to be staying with the auto trans, that will make it simpler (relatively speaking). Subaru EZ30 3.0L Engine Review The Subaru started production of 3.0-liter six-cylinder boxer engine the EZ30 in 1999 instead of the EG33 motor. 2000-2002 SUBARU EZ30 3.0L H6 6 CYLINDER ENGINE OUTBACK LEGACY TRIBECA-Actual Pictures-Approx 60000 miles-90 Day Warranty ... Honda k20a TYPE R ENGINE SWAP 6 SPEED LSD TRANSMISSION Honda b18b B18B1 Honda dc2 FRONT END CONVERSION INTEGRA TYPE R FRONT END CONVERSION HID BLACK HOUSING If you could re-write the full code to take the extra cylinders into account? jdm subaru legacy ez30. The 99 has a four pin connector B72 for the ignition switch. I did eventually wire it to the 99 brake and clutch pedal switches so it turns off if you hit either of those pedals. I went from the green/black 12V to a 3.9k ohm resistor. For engine or trans swapping purposes, the 2001-2004 non VDC cars are the simplest. on the 2002 EZ30 ECU. 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