Question about Dodge Cars & Trucks
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Posted on Jan 02, 2017
The barometric pressure (BARO) sensor is built into the engine control module (ECM)/powertrain control module (PCM), and
it monitors atmospheric pressure. The ECM/PCM estimates appropriate intake airflow from the manifold absolute pressure
(MAP) sensor output voltage and BARO sensor output voltage. If the BARO sensor output voltage is a specified value or
less, the ECM/PCM detects a malfunction and a DTC is p2228 stored. -- it is most likely a problem with the mass airflow sensor. but a problem like this should been seen at a dealer
Posted on Oct 28, 2009
UNPLUG WIRING HARNESS FROM THE MAP SENSOR ( LOCATED ON THE TOP OF THE ENGINE ON THE INTAKE MANIFOLD,)
REMOVE U SHAPED RETAINER IT HOLDS THE SENSOR DOWN ON THE MANIFOLD YOU MAY NEED TO REPLACE THE SEAL GROMMET IF TEARS.USE A SCREWDRIVER TO PUSH THE RELEASE TABS IN ON THE RETAINER
HOPE THIS HELPS
Posted on Aug 07, 2010
Tips for a great answer:
Dec 12, 2013 | Cars & Trucks
Sep 16, 2012 | 2004 Ford Explorer
Aug 15, 2017 | 2000 Dodge Dakota Quad Cab
Sep 21, 2011 | 2001 Ford F350 Super Duty SuperCab
P0129 Barometric Pressure Too Low
The shop manual gets into great detail about 5-VOLT SUPPLY CIRCUIT SHORTED TO BATTERY VOLTAGE.
Basically it is receiving the information from the Manifold Absolute Pressure sensor (MAP sensor)
Changing the MAP SENSOR may correct this issue. The problem is that the sensor may not be the issue and it may be the circuits that feed info to the sensor. The pressure is translated to and measured in voltage and the electronics that create the voltages could be at fault. The MAP sensor is on average $100.00 and cannot be returned once installed so if you replace it and the problem is not fixed you will not be able to get that money back.
P0442 Evaporator Emission Control System Leak Detected (small leak)
This is caused by a decrease in expected fuel tank pressure. It could be a loose or leaking gas cap. I leak in the evaporator hose or canister or in some cases a gas tank replacement.
I hope this helped.
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