2004 Daewoo Lacetti Losing Power

2004 DAEWOO LACETTI
20,000 MILES • 4 CYL • FWD • MANUAL
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BUBBAKERR
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ever since the car was about a year old the check engine light has been on. The SERE engineers said it was nothing to worry about at each service interval. For the last year the car has been losing power to the point it is dangerous to drive. i recently had it hooked to a computer and the only thing it says is 'multiple mis fires'. I had the leads, plugs and coil pack changed. Light stayed off for a day! It drove like new for a week, then the problem has come back. I've just spent £250 and really puzzled. grateful for any advice. Car only has 20000 miles on it.
Nov 27, 2009 at 3:52 AM
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RASMATAZ
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Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Nov 27, 2009 at 5:16 AM