What are these codes for B1342 B1676 C1145 C1175 P0308 P1401 P0135 in Grand Marquis do I have to fix it all?

Answer 1

Codes B1342 thru C1175 all deal with ABS System in the Car. I suspect a Bad ABS System Sensor. This would need to be fixed as it could affect your breaking ability.

Code P0308 is a Cylinder 8 Misfire - A good Tuneup should fix this.

Code P1401 is a bad or shorted DPFE Sensor. You'll need to get this fixed.

And Code P0135 is the Heating System Front O2 sensors. Replace your O2 sensor.

Hope this helps.