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Everything posted by Legacy777
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Not sure about the IAC valve error. It's possible it needs to be replaced. As for the 5-pin vs. 4-pin. It shouldn't matter. The Black JECS MAF sensors on the 90-91's I believe had the 5-pins, and then in 92 they went to 4-pin. The reasoning is due to because the first gen legacy had two different MAF sensors. The ECU detects when the incorrect MAF sensor is used by having an extra pin on the MAF that grounds. I believe on the JECS MAF sensor with 5 pins, that pin is not really hooked up to anything. They probably went to the 4-pin setup to save money...or whatever. I've used 4 & 5 pin JECS MAF sensors without any problem.
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What is the condition of the transmission fluid? It could be that it's so contaminated, that the internal screen is getting plugged up, as it runs and fluid circulates. When you shut it off, fluid comes back down and back flushes the screen. You can try replacing the fluid. It may or may not work. Either way, I wouldn't expect much more life out of the tranny without a rebuild.
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Yeah...combination meter is the instrument panel/gauge cluster. Yeah....does sound like it's the meter, I don't think the cable would be causing this. Like I said, to remove the instrument gauge cluster, you have to remove the black trim around it. There are some hidden screws, and you will probably have to pop out the vents and switches to get at all the screws. You also will probably either have to remove the two bolts that hold the steering column to the dash so the steering wheel lowers. This will give you enough clearance to get the black trim piece out. The other option is to remove the steering wheel.
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First, the temp sensor is driven off of the ECU. I'm pretty sure the ECU sensor in the same spot as the 2.2, which is in the coolant crossover on the passenger side of the engine. It's under the intake manifold. Here's some pics that may help http://www.main.experiencetherave.com:8080/subaru/images/injectors/