Hi, My 2002 Honda Accord's RPM and speedometer drop, and the check engine light shown when I let off the gas a bit, but it still run normally. It will back to normal when i press the gas pedal again. Anyone know what the problem is this? Thanks.


Here is a Youtube link of the video of the problem.

 

Get the actual trouble code number and post it. Places like Autozone, etc. in most states (except like California) will read them for free.