Lacetti DTC P0300

Tiny
ALICJAR
  • MEMBER
  • 2007 DAEWOO LACETTI
  • 4 CYL
  • 2WD
  • MANUAL
  • 25,000 MILES
I hope you can help with my present problems with my Lacetti 1.4L (2007, millage 25 000km). The engine runs unevenly at idle and the vehicle shake. Trouble code showed is P0300. Visual inspections did not help to find the reason. All cables and connections looks well.
Misfire occurred for quite some time, but the whole car began to shake recently. There is no smell, leaks or performed repairs.I am very begginer. Could anybody advise what is the most probable reason? From what should I start?
Tuesday, June 7th, 2011 AT 1:13 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Misfiring usually are due to bad spark plugs. Start with that.

Check all components relayed to ignition sparks.

Next to chekc would be the fuel system, check the injectors.

Engine comporession or vacuum leaks are other possible causes for misfiring.
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Tuesday, June 7th, 2011 AT 1:59 PM

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