what is: sensor

Thursday, June 21, 2012

2003 Chrysler Town & Country: OBD Code P0171?

Check engine light code P0171.
This code says p0171 fuel system lean, bank 1 sensor 1.

The Sensor has to be replaced.

The most probable reason for this trouble code is a faulty oxygen sensor.
But before directly replacing O2 sensor i recommend to make sure there is no vacuum leak and also check wiring to the B1S1 O2 sensor.If all this checked ok,then replace the sensor.
Make sure to use a genuine Mopar oxygen sensor as I have seen too many troubles with aftermarket O2 sensors .Use quality parts and branded parts.

For you help:------
Bank 1 is the rear bank, closer to the firewall
Sensor 1 is the upstream O2 sensor ( in the exhaust manifold), that is before catalytic converter.

This details will help.
Thanks.

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Friday, June 1, 2012

2002 Nissan Altima: How to Replace Accelerator Pedal Sensor?

To replace the Accelerator Position Pedal sensor, simply unplug the electrical connector, remove the screws holding it in position, and install the new one.
See the Diagram shown below for its Accurate location:-----
Accelerator sensor

After the Sensor is replaced,it will still not perform,to make the Sensor function right You have to perform a calibration procedure as described below: --------

DESCRIPTION
"Accelerator Pedal Released Position Learning" is an operation to learn the fully released position of the accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time harness connector of accelerator pedal position sensor or ECM is disconnected.

OPERATION PROCEDURE
Make sure that accelerator pedal is fully released.
Turn ignition switch "ON" and wait at least 2 seconds .
Turn ignition switch "OFF" wait at least 10 seconds .
Turn ignition switch "ON" and wait at least 2 seconds .
Turn ignition switch "OFF" wait at least 10 seconds .

Once the Relearn procedure is done.All will function right.

This details will help.
Thanks.