Question about 1989 Buick Century

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Hard start my 1989 buick century is a hard start and was cutting out. I replace the upstream o2 sensor and the fuel filter. It seemed to help the sputtering, but not the hard start. Doesn't start easy the first time. and Then will start a couple times easy after that and then goes back to not starting. The plug and wires replaced about 2 months ago. I need this car and I am broke can't afford the 65.oo diagnosic test. Just lost my job. Can anyone give me an idea what might be wrong.

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1999 honda accord seems like it isn't gettign a steady fuel supply, it keeps sputtering and almost dies but when I pump the gas pedal it revs back up. I just put a new O2 sensor in and it sounds l

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