My engine surges at idle to about 1100 rpm. It does not always do it. My mechanic has checked everything out and can find no problems. He confirmed that the O2 sensors are good and that the IAC valve is good. There are no fault codes set. It does not matter if the engine is hot or cold when it happens. Any thoughts?
Idle Surge on 2003 Honda Odyssey
by biocrim in Diamond Bar, CA on May 03, 2010
ANSWER by Visitor , May 10, 2011
Problem solved. It was the power steering pressure switch. It had a faulty electrical connection.
ANSWER by nutechauto , May 06, 2011
Idle goes up and down around 1100 RPM?