I have 2007 Honda Accord VP, 2.4L, auto trans, VIN 1HGCM56107A152459
There are NO CODE, everything seems normal .
The symptoms I have are:
At cold start, Engine hold 1500RPM a bit longer than other car, like 5-7 minutes before slowly drops down to 1000RPM, If I give it a light push on gas pedal, it would hold around 1200RPM for awhile before back down to 1000RPM again. Even when engine are running for hour, if I turn off and restart, it would take 30 second to get RPM down.
When I shift to R, engine RPM would go up 1200 briefly by itself, when I shift to N, engine RPM would go up 1200 briefly again, when I shift to D, engine RPM would go up 1200 briefly again .
When I reduce speed to around 15- 25 MPH, I would need to apply brakes harder because RPM surges up 1500RPM then down as the transmission
down gear. At complete stop, RPM would not drop down quick enough and have tendency to goes up by itself. Let say while decelerate to a stop, I shift to N, RPM would go up to 2000RPM for at least 10-15 seconds.
Thanks for your time