Valve, exhaust gas recirculation (EGR)

Description The EGR valve consists of three major components. First there is the pintle, valve seat, and housing which contains and regulates the gas flow. Second there is the armature, return s ...

Description, Operation

DESCRIPTION OPERATION The following procedure has been established to assist technicians in the field with enabling and running OBD II Monitors. The order listed in the following procedur ...

See also:

Task manager
Description The PCM is responsible for efficiently coordinating the operation of all the emissions-related components. The PCM is also responsible for determining if the diagnostic systems are ope ...

Switch, oil pressure
Description The engine oil pressure switch is located on the right side of the engine block. The switch screws into the engine main oil gallery. The normally closed switch provides an input throug ...

Description - monitored component
There are several components that will affect vehicle emissions if they malfunction. If one of these components malfunctions the Malfunction Indicator Lamp (Check Engine) will illuminate. Some o ...