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seth3030

94 legacy wagon problems still

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Cleaning the MAF is easy and costs $5. Might as well start there.

 

Does it do the same thing if you accelerate hard (put it on the floor) on flat ground?

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not usually but it depends how hard i push it it has before, when i do push it hard there is quite a bit of lag or throttle response but i can tell it is trying

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Slim chance, but easy to check. A plugged gas cap allows a vacuum to build in the tank, making it hard for the pump to deliver enough pressure. All you have to do is pull over right away, shut it down and open the cap. If you hear air sucking in, you found it. Good luck.

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Had a friend with a postal wagon that would do the same thing. He could drive all day with it but there was one hill he would make it up halfway and it would start misfiring. Stop, let it wait 5 mins, it would fire back up and make it the rest of the way up the hill. Fuel pressure was good, filter was clean, no codes, so we threw parts at it off my pile of spares. A different coilpack solved it. Apparently the coil was marginal and it would overheat and open under heavy load. They don't go bad very often, so grab a coil off a manual transmission car. Coil should say "diamond" on it, they're supposed to be better.

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new coil nothing changed, o2 sensor changed, air filter changed, fuel filter and fuel pump changed, new spark plugs and wires, new gas cap, still the same problem, im about to ghost ride this thing off cliff

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A '94 should have an OBD 1 computer control system. OBD 2, which standardized codes among manufacturers, started in '96. This means that your onboard diagnostics can be read by Subaru compatible code readers. You don't have to go to Subaru. Stop in at your local full service auto parts store and see if they can read your trouble codes. If you have to buy a suitable code reader, it should be in the $100 range. Make a few calls to NAPA, etc, and ask what they recommend. Read the codes before you drive it off a cliff.

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i was reading another post similar to mine and he said that the obd1 said "purge control solenoid" is there any chance this could be it

Edited by seth3030

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Any chance you could test the fuel pressure going up that hill? Dropping cylinders and lack of power under load suggests to me either a weak ignition or low fuel flow.

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i dont think so :/ but ignition how? i put a brand new coil on it, and if fuel flow is low then what could be causing it if i replaced the fuel pump and filter?

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