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'''This page documents ECU features to be utilised in the EJ25 N/A DOHC installation''' ---- || ''Feature'' || ''Spec'' || ''Hardware utilised'' || ''Software support'' ||''Priority''|| || Sequential injection || 4 x 11.5 Ohm injectors || 4 x injector drivers|| Yes || - || || Wasted spark ignition || Diamond F-569 coilpack. 0.62 - 0.76 Ohms primary, 17.9 - 24.5 K-Ohms secondary. || 4 x ignition drivers|| Yes || - || || Stepper idle control || || Stepper outputs || Yes || - || || Fuel pump || || Fuel pump relay output || Yes || - || || MAP || 0-5V range || OEM external pressure sensor (Auto and Turbo models only?) || Yes || - || || LCD || || 4x40 LCD output || Yes || - || || Dual wideband lambda || Bosch LSU || WBO2 channels 1 and 2 || Partial (comparison and range testing should be done) || Low || || EGT || || EGT sensor || Partial (is this used for more than display?) || Low || || Knock sensor || "AC voltage output" || Knock channel || Partial (is this used for more than display?) || Low || || Cooling fans || || 2 relay outputs || Partial (only 1 fan switch is supported) || Medium || || Subaru crank trigger || 87/32 degree signal, TDC 10 before. Magnetic VR || VR 1 || No || High || || Subaru cam sync || 1,2 or 3 pulses to determine cylinder, so order is important (eg, to know cyl. 1 vs cyl. 4). Magnetic VR || VR 2 || No || High || || EGR Valve || Solenoid || Misc driver 1 || No || Medium || || PCV Valve || Solenoid || Misc driver 2 || No || Medium || || Pressure Select Valve || Solenoid (manifold/barometric select) || Misc driver 3 || No || Medium || || EVAP Valve || Solenoid || Misc driver 4 || No || Medium || || Warning Lamp (CEL) || Dashboard lamp || Misc driver 5 || No || Low || In [http://en.wikipedia.org/wiki/MoSCoW_Method MoSCoW] parlance: High = Must Have, Medium = Should Have, Low = Could Have. [dnb]Very interested to see how this goes... The MAP sensor is indeed only present on turbo cars. The injectors are low impedance IIRC - however resistor packs can get around this. Supporting the VR trigger itself is no problem, but the crank trigger pattern does not seem straight forward to me... I do have a source for direct replacement 36-1 wheel though! What will you use the pressure exchange solenoid for? Baro correction?
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