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Subaru swap 1.5 A/T to EJ204 MT. Lots of problems.
Dear Friends, hello! I'm fighting now with Subaru. Engine was swapped from 1.5 A/T to 2.0 M/T, there was a lot of mess and misconnected wires. Looks like i've fixed wiring problem. But i still cant fix what is wrong with MAF. I have a new original MAF sensor. And i have around 4 volts full throttle. But my grams per second readings are 12 grams at idle, and 400 grams full throttle driving test, average 2.0 atmospheric engine. I've thought ECU was from some turbo Subaru, or was re flashed. So i've bought a used ECU for this engine, and, i see the same readings. Funny that my injection pulse at idle is 2.8 ms, it doesn't look like 3 or 4 times more. And, no backfire in exhaust. I can start engine warm, if i've had a 3-4 time more fuel, i would have drowned engine with fuel and never could start it warm. Also there is Bosch 5 wire LSU 4.2 AF sensor. Reference 2.55 volts wire was swapped with pumpig current calibration wire, so my AFR was constantly 0.69 without any chance to go rich,Only lean. After i've fixed wiring problem, i have 1.0 AFR until my front AF sensor warms up, then i get -20% short term instantly, and my rear O2 sensor goes lean, low voltage.SO i assume wrong readings for my front AF sensor. But. also i have now 35 kPA at idle, it is higher than it should be. Maybe i have a good AF sensor now, but i have plugged exhaust? or Valves are not sealing combustion chamber properly? Or my AF sensor after thousands KM o fwrong connection damaged?Is that possible?
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