1998 Vauxhall Astra slight misfire

Tiny
NOSHA64
  • MEMBER
  • 1998 VAUXHALL ASTRA
  • V8
  • 2WD
  • AUTOMATIC
  • 56,734 MILES
Hi when I start my car up there is a slight misfire and my rev counter goes up and down as the car gets hotter the misfire gets worse no problems when the car is going been to the vauxhall dealers they put it on the machine but the ecu wouldnt let the computer in an older machine found a fault it was the timing but I thought you couldnt set the timing on these please help as ive spent a fortune on the car
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Thursday, August 13th, 2009 AT 1:16 PM

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Tiny
RASMATAZ
  • MEMBER
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.
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Thursday, August 13th, 2009 AT 3:38 PM

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