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Everything posted by Legacy777
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Welcome to the USMB. I'm going to move your thread to the retrofitting forum.
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With only the black connectors connected, the ECU will show stored/history codes. With only the green connectors connected, the ECU will show "active" codes. To clear the ECU memory/codes, you connect both the black & green connectors. I've got the specific procedure for the active code check & memory clear on my site. www.surrealmirage.com/subaru/engine.html
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Try swapping the pins between the front and rear on the coil pack and see if the front two cylinders start firing or not. That will confirm whether the coil is working properly or not.
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Below are the testing procedures from the factory manual. Have you run through these checks yet? http://www.experiencetherave.com/subaru_manual_scans/FSM_Scans/TPS_testing1.jpg http://www.experiencetherave.com/subaru_manual_scans/FSM_Scans/TPS_testing2.jpg http://www.experiencetherave.com/subaru_manual_scans/FSM_Scans/TPS_testing3.jpg The third page test/scan is the only adjustment you can do on the TPS. Check the other tests, and then check the idle switch and adjust it if necessary. If you still have issues and everything is within spec, then I'd check the wiring from the TPS to the ECU.
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Welcome to the USMB!
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Typical vapor lock in the fuel line is pretty much uncommon with fuel injected vehicles if everything is working properly. Have you tried the "opening the gas cap & relieving pressure" trick more than once? Does doing that work every time?
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I've found that sometimes the sensor can still be bad and read in spec. So just something to keep in mind when you're testing. Try testing it at cold and hot temps.
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Yes I was referring to the engine coolant temp sensor. Sorry I must have missed that you already replaced it.
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Greetings from Murray, UT!
Legacy777 replied to gbowler300's topic in Meet n' Greet. Your USMB Welcome Center
Welcome to the USMB! -
I changed the title of your thread to more accurately reflect your problem. I think checking fuel pressure and/or replacing the fuel filter are good troubleshooting steps. The temp sensor may also be a good thing to replace. I've seen more times that they fail the other way and work fine when hot, but not when cold. They are pretty cheap to replace, so it may not be a bad idea to just replace it since the ECU has a lot of engine temperature related correction factors built into it.