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2002 Fiat Punto Engine misfire

Tiny
PAV2211
  • MEMBER
  • 2002 FIAT PUNTO
  • 1.2L
  • 4 CYL
  • FWD
  • MANUAL
  • 96,000 MILES
Hi.
I have a fiat punto 2002, 1.2 8V. The car has a problem which sounds misfire to me on idle running or upto 1500 RPM. On high revs, it works perfect. I have changed the spark plugs, cleaned the fuel system and got it serviced but still it wont run smooth when idle. Also it takes a deep breath when I release the clutch on low revs < 1500 and sometimes the engine just dies.
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Friday, August 29th, 2014 AT 2:53 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
Have you checked for vacuum leaks? Have you checked to make sure the fuel pressure is within the manufacturer's specs?
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Friday, August 29th, 2014 AT 7:47 PM
Tiny
PAV2211
  • MEMBER
  • 2 POSTS
I have been to a mechanic and he cleaned all the fuel pipes and fuel pump as well but I am not sure about the pressure. Also could it be a problem in carburetor or any other issue with the electric supply to spark plugs or ignition coils.
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Saturday, August 30th, 2014 AT 11:37 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
A carb? It should be fuel injected, correct? And yes, it could be any of the things you mentioned.
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Saturday, August 30th, 2014 AT 7:13 PM

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