The engine light is on in my car. And I got the code p0300. Is this a big problem and what can I do?
Aug 12, 2010 at 4:16 PM
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RASMATAZ
AUTOMOTIVE REPAIR CONTRIBUTOR
75,992 POSTS
You have a random misfire code which are caused by vacuum leaks and bad fuel.
Aug 12, 2010 at 8:20 PM
YYWWRONALDO
MEMBER
3 POSTS
So what can I do to repair it? Thanks a lot.
Aug 12, 2010 at 8:52 PM
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RASMATAZ
AUTOMOTIVE REPAIR CONTRIBUTOR
75,992 POSTS
That's only a part of it that can be wrong also below
1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.