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Misfire

Tiny
FREDDY GARVEN
  • MEMBER
  • 2000 CHEVROLET ASTRO
  • 4.3L
  • 6 CYL
  • 2WD
  • 138,000 MILES
Po300. What is my ideal reading supposed to be for my MAF sensor? I am just wondering. Currently it is at 0.012 area while driving.
Changed cap, rotor, plugs, wires, distributor. Cannot seem to find a vacuum leak. Never did compression test.
Motor runs fine once in awhile. When at speed and a slight incline shed start acting up.
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Monday, November 13th, 2017 AT 1:39 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
On average, at an idle you should see between.5 and.8. Wide open throttle should be between 4 and 5 volts. The reading you mentioned seems very low if you get it when driving.
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Monday, November 13th, 2017 AT 6:04 PM

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