Question about 2002 Chevrolet Impala
Causes to idle high and to over heat
Posted by Anonymous on
DTC P0641 The powertrain control module (PCM) provides a 5-volt reference to the following sensors:
The throttle position (TP) sensor 1
The accelerator pedal position (APP) sensor 2
The engine cooling fan speed sensor
The AC pressure sensor
The fuel tank pressure (FTP) sensor
The oil pressure sensor (OPS)
The PCM monitors voltage on the 5-volt reference circuit. If the voltage is higher or lower than required, DTC P0641 will set.
Posted on Aug 28, 2014
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Posted on Jan 02, 2017
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