Mass Air Flow Sensor

Tiny
BRETTLAXTON
  • MEMBER
  • 2000 VOLKSWAGEN JETTA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 136,000 MILES
My car 2000 Jetta had trouble starting for a while, finally would then a lot of white exhaust would come out. Car won't start now and computer says trouble with the fuel air metering. I cleaned the Mass Air Flow Sensor. It will backfire but won't turn over. Will a bad MAF sensor cause my car not to start at all?
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Wednesday, December 8th, 2010 AT 9:17 PM

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Tiny
2CEXPT
  • MEMBER
Do below:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
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Wednesday, December 8th, 2010 AT 9:27 PM

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