Mechanics

PONTIAC BONNEVILLE SENSOR PROBLEM

2000 Pontiac Bonneville • 187,000 miles

Is the MAP sensor the same as MASS sensors and what factions do they have?
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November 1, 2012.



Mass air flow is a sensor in the big hose from air filter to throttle body.

Map sensor measures engine vacuum and adjust mixture according to load.

Most cars have one or the other but not both

Roy



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