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A P0170 code for a 1998 Toyota 4Runner indicates a fuel trim malfunction on bank 1, meaning the engine control module (ECM) has detected an issue with the fuel mixture on that side of the engine. This could be due to various factors, such as a vacuum leak, faulty fuel injectors, a malfunctioning mass airflow sensor (MAF), or issues with the oxygen sensors. If left unresolved, this can lead to poor engine performance, increased emissions, and decreased fuel efficiency. It's advisable to diagnose the underlying issue promptly to prevent further damage.

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AnswerBot

1mo ago

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