Hi, My check engine light came on the other day and I noticed the car shifting differently. It will shift at a higher rpm than it normally does. Then out of the blue the light CEL went off and it was back to normal. Then a week later the light came back on and it is shifting at a higher rpm again. Any ideas what this could be? Thank you very much.
Check engine light with shifting at higher rpms on 2005 Honda Civic
by boardnut32 in Brentwood, CA on May 17, 2010
ANSWER by matte , May 17, 2010
A problem with the transmission could cause both of these symptoms, including the light. It could also be another system in the vehicle causing a driveabiliy problem and the light. You need the trouble code or codes to figure out what the underlying cause is--best bet is a good diagnostic technician.