Hey all. I am new to this forum and am having a problem with my son’s car. Both my daughter and son have a 2009 Subaru Legacy 2.5i. They both had bad head gaskets. I replaced my daughter’s head gasket, and she is a very happy camper. Her car has 150k miles and runs great. Now for the car from hell. I replaced my son’s head gaskets as well and reinstalled the engine. The car ran well except it had an oil leak. The leak was on the oil sensor port ( I must have overtightened it) and I had to take the engine out once again. Now that I have the engine in I can’t get her to turn over. The car cranks and it starts for a quick second or 2 every so often when I try to work on her. I am getting a P0031 error. I have checked the O2 sensors for continuity and all seems fine. Any ideas? I have run out of ideas. I have checked and cleaned the MAF sensor, the new fuel injectors, fuel pressure. I am not a mechanic and only because of the cost of doing the heads $2000 plus each car I decided to take this on. I learned a lot and actually enjoyed working on my daughters car. My son’s car has been some what of a nightmare. Any he’s much appreciated. Thank you.
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