Question about 1991 Subaru Legacy

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1991 subaru legacy

Replaced wires plugs and cilnoid pack and it is still missing on one cylender. yes i posted the other on but forgot to put year make and modle of care sorry its starting to drive me nuts

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An engine needs fuel, air, and spark. it sounds like you have spark covered. try injector cleaner. if one brand doesn't work try another. at different times i've had luck with techron, seafoam, and lucas, which are about as different as they can be. its also possible that the problem is the injector itself or the wiring, but try cleaning it first. If the air filter or throttle body are dirty, which is rather likely on a '91, change the air filter and use use carb cleaner or seafoam. Also clean/change the PCV valve and clean the idle air control valve.

Posted on Mar 21, 2009

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The cylinders are numbered as on the spark pack you changed. You might have done better putting the seafoam in the tank as an injector cleaner. Not sure why you changed so many parts, you seem to know how to get the codes from test connector lead hookup and the blink pattern. You might also want to check the fuel rail pressure and the crank and cam angle sensors. Before replacing the injector, swap the #4 injector with the adjacent one and see it the code moves with the injector or stays put. If the code stays on #4, then check the injector wiring, if it moves clean or replace the injector.

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1 Answer

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Check for water in spark plug tubes, ign. wire connector ends & coil pack for corrosion.
All marks go up, the crankshaft sprocket has an arrow that you don't use! if you position the crank sprocket where the key way is down you'll notice that the sprockect has a timing mark at the top of one of the sensor pickup teeth, use that. Here is a rough home made pic. I hope this pic made it, no conformation that it did.

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