2001 sonata multiple engine misfire
 

having problem with multiple engine misfire,very bad when engine is cold,once it warms up it runs fine, any ideas?

Could be all kinds of things. Did you do a code scan? Is there a check engine light?

Reply
 

Was checked with a basic OBD scanner and pulled a 300 code which is multiple engine misfire. I'm thinking it must be a sensor or some computer related problem...any idea's?

Could be a lot of things. I'd start by changing the plugs and wires.

From odb-codes.com:

A code P0300 may mean that one or more of the following has happened:

* Faulty spark plugs
or wires
* Faulty coil (pack)
* Faulty oxygen sensor(s)
* Faulty fuel injector(s)
* Burned exhaust valve
* Faulty catalytic converter(s)
* Stuck/blocked EGR valve / passages
* Faulty camshaft position sensor
* Defective computer