Misfire

Tiny
KEVINNOVIA
  • MEMBER
  • 2001 RENAULT MEGANE
  • 2WD
  • MANUAL
  • 65,000 MILES
I've got '201 Pollutant misfire' popping up. Any idea's on what it could be & how to fix?
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Friday, December 17th, 2010 AT 10:18 AM

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Tiny
ERNEST CLARK
  • EXPERT
There are two kinds of misfires: Ignition and fuel.

For ignition:
Check plugs/wires/coils

For fuel:
Check fuel pressure regulator for a leak (Pull vacuum hose and check for presence of fuel. If there's any, replace it)
Check for all injectors firing with an automotive stethoscope. You should hear a clicking sound. If one/more are not firing, first check that there's a signal telling it to fire. If yes, replace injector. If not, check wiring harness/connector, and/or computer.
Check injector flow pattern and for a clogged/leaking injector.
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Wednesday, December 29th, 2010 AT 3:11 PM

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