hesitation on steady accell on 2002 Toyota 4Runner

2002 4 runner. hesitates like losing power during steady accelleration.constant surging

by in Elgin, IL on January 24, 2012
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2 answers
ANSWER by , January 24, 2012
Check for any check engine light codes, this is the best place to start, as it will help you diagnose the issues.
ANSWER by , January 24, 2012
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.