Q: hesitation on steady accell on 2002 Toyota 4Runner

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
2002 4 runner. hesitates like losing power during steady accelleration.constant surging
(2) Answers
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Start with checking for trouble codes stored, then the next best thing to do is look at live sensor data with a professional grade scan tool, you can see fuel trim figures which may imply a vacuum leak or low fuel pressure or delivery volume. Best to start with the basics and proceed with proper diagnostic trouble shooting.
Check for any check engine light codes, this is the best place to start, as it will help you diagnose the issues.