where is the map sensor located in this car

5

Asked by Jul 12, 2007 at 03:08 PM about the 2001 Pontiac Sunfire

Question type: Maintenance & Repair

having problems @ 109.000 miles- per the specifics of the diagnostic testing, it is recommended by a mechanic to replace the Map sensor; however, not sure where the map sensor is located under the hood. Need to point out where it is add (all I know it is located "near the firewall". Manual is not specific.  Need some sort of diagram to point out where it is

2 Answers

41,605

The MAP sensor is located on the firewall. You can find it by looking at the intake manifold and following the vacuum lines that come out of it to a black cigarette-box or smaller sized sensor. The Manifold Absolute Pressure sensor measures the air pressure inside the intake manifold vs. the atmospheric air pressure to maintain an optimum fuel-air mixture.

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sunfire accelerated to 2.4 when background is not responding, only when it is gradually accelerated as responsive

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