Did The OBDII scan of the stored fault history, indicate all of the parts you changed were bad. The TPS (throttle position sensor) is the only sensor that is subject to physical wear and age (2002). A dirty air filter will put the MAF (mass airflow sensor) out of range. Always let the stored fault history be your guide to any repairs to avoid buying parts you don't need. Also be aware of the low oil sensor function, it will disable the ignition if more than a quart low. Always do the cheapest fixes first.
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