DB15-9 - B136-29 / Atmospheric pressure sensor. The following pins in the DB15 connectors will be connected to the identified ECU Harness wire. The DB15 connectors will be positioned as follows inline of the main engine harness. Note carefully the location of pin1 on the Male and Female DB15 connectors. When Setting up the main splice, the above pins images will be used as reference. In order to achieve the equivalent of a tap, the wires at the EMU side will be joined together. However to keep things simple and clean, all wires in the harness, tapped or cut, will be cut. 
Some of the connections between the engine and the ECU are cut and intercepted by the EMU, and others are simply tapped and referenced.
Pin-13(R)/12v -> Red wire of Molex Connector. Pin-12(B)/Ground -> Black wire of Molex Connector. B135-7/12v (Ignition Power) (tap) to Red wire of Molex Connector. B134-8/Ground (tap) -> Black wire of Molex Connector. Like a Wide-band O2 Controller module for example. #Komolika in kasauti zindagi ki Pc
The other upside to using one of these molex connectors, is you can now find one of those molex Y-Adapters used to add an extra hard drive to a PC to create a 2nd Power/Ground pair for another device. I left the other 2 wires intact but taped up and out of the way, just in case I found a future need for them. Then, take the other end of the 4-pin molex pair, and wire the 12v and ground to the EMU.
Tap/splice (don't cut) into the ECU power and ground wires and add the red and black wires from one end of a 4-pin Molex connector. Perhaps it's been fixed in new versions.Ģ - Not needed since the RPM is detected from the ignition input from the ECU. Some people reported the temp reading is decreased by 20 oC if set to OPEN. JP16-(anything/not used) VTech Freq Inputġ - Do NOT tap the Knock Sensor, the Subaru ECU can't share the signal.JP14-(Open) - Knock 2 / Intake Temp Input 1.
JP13-(Open) - Knock 1 / Water Temp Input 1. JP10-(Open) - Airflow Signal Input 2 / VTec output. The EMU detects and calculates RPM from the ignition input signal. If anything, use an aftermarket knock sensor. Don't tap the Knock sensor, the EMU doesn't play nice with the factory Knock system. You'll need 2wice the plugs, but they are way smaller. You might also consider using a a couple of 9-pin mini-DIN plugs. This way, I only need to unplug the pair or DB15s from the EMU, and plug them back together to return to 100% stock ECU functionality. I'll use a Male/Female pair put in-line in the main wiring harness, then a 2nd par wired to the EMU to match the wiring needs. In order to make the EManage easily removable I decided to employ a DB15 15-pin computer connector. At the time, the model "d" was the more common. It's worth noting that I managed to pick up a EManage Ultimate with the model "e" layout. Considered one of the better (if not best) piggy-back ECUs available. In the end, I found a really good deal on a GReddy EManage Ultimate. Unfortunately, not all of them are really viable on a 2000 Subaru EJ251. There are actually a good number of options for engine management available in the aftermarket world. 2.2 GM 2-BAR Map Sensor Volts vs Pressure Reference. 1.1.6 EMU (DB15M) to Engine Harness (DB15F). 1.1.5 Engine/ECU Harness to DB15F/F pair.
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