Chrysler Grand Voyager 2.8 CRD Diesel- 2004

My car is having starting hiccups especially when its cold. Recently had a new alternator installed and serviced. I also changed the glow plugs and camshaft sensor. The keydance still showing the following OBDII error codes

P0340
P0520
P1685
P0514

The ABS is having an issue as I hear a squeeking sound when I break. And the mpg is very poor with lumpy running. The car has to be revd too much on hill and I don't see not much torque.

Please help

 

Here is a link to a site that lists codes:
Chrysler, Dodge, and Jeep Computer Error Codes
Your codes are:
P0340 Camshaft Position Sensor Circuit
P0520 Engine oil pressure sensor/switch circuit malfunction
P1685 Smartkey immobiliser module reports bad key (maybe someone used wrong key or battery in key is shot)
P0514 not listed. Possibly also an ignition security code item?

Clear all the codes, and see which ones come back again.

 

P0514 is battery temperature sensor temp malfunction - nothing to worry about really.

The engine oil pressure is worth investigating to make sure it has cleared and is not a current fault

the only one that may cause rough running is the Cam sensor, but it's not unusual to find a stored Cam sensor fault from some time in the past.

Regards
Richard

 

thanks so much for the reply
please guide me how to clear the codes
thanks

 

Should probably have changed Crank Sensor as well..

 

Clear codes? Disconnect the negative battery cable for 2-3 minutes or connect a scanner and use the clear function.

Nothing has changed in 9 months?