Engine Performance problem
2006 Kia Sedona Automatic
I have took m car to the Kia Dealer and they put in on the computer and it said that it is a miss fire problem so we change the spark plugs and it's still doing the same
Monday, August 16th, 2010 AT 2:34 AM
1 Reply
RASMATAZ
MECHANIC
75,992 POSTS
Engine running rough or misfiring can be cause by the following:
Defective spark plug.
Inadequate spark/coil, defective spark plug wire.
Lack of compression
False air leakage.
Faulty fuel injectors.
Insufficient fuel pressure.
Contaminated fuel.
EGR valve that is leaking.
Oxygen sensors.
Throttle Position sensor
Idle air control valve