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MAP Sensors - What are they? How do they work?

Manifold Absolute Pressure (MAP) Sensors

MAP SensorWhat do they do?

Determine the intake manifold pressure or vacuum.

How do they work?

ECM uses the signal from the MAP sensor to determine the engine load and ensure proper air/fuel ratio.

Where are they located?

Intake manifold, throttle body or remote mounted under hood.

Symptoms of failure

  • Check engine light
  • Engine hesitation
  • Poor fuel economy
  • Failed emissions test
  • Engine stalling
  • Extended crank time

questions?
call us (888-800-9629)
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