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Re: Atmospheric Pressure SensorI have a 2001 Mitsubishi...
Its located in the air filter housing....The volume air flow sensor also incorporates the barometric pressure sensor and the air intake sensor....If you are replacing either of these sensors replace the volume airflow sensor.......
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Tell me what code you are getting .
A barometric pressure sensor dose not work on its own .
You have the mass air flow sensor this is the first air sensor coming into the vehicle then you have an air temp sensor then what is called ECT engine coolant temp sensor .
The problem to me sounds like the MAP sensor manifold absolute pressure .You loss this the vehicle is not going to run to good.
If it wore the mass air flow it would cost the most the map is far less in price still not cheap the barometric sensor it likely a symptom of the real problem .
Check the gas flow in side the engine like EGR and EVAP systems to a vacuum thing .
this sounds like an electronic problem. the control unit thinks about 50000 cycles in a second. it's bound that there could be a problem. a second hand black box or computer box should fix your propblem. goodluck
There is no point in trying to make heads or tails as to why a lite goes on , there are too many variables to consider.Have the vehicle scanned for codes at Autozone( usually free) and then do the repair accordingly.