What is this code means? P1119 and P0154

[Crystal Shine]

2000 Boxster S with 60000 miles.

Got CEL. OBD II said P0154 and P1119.

Could someone please help me to check the code for me?

[Loren]

OBD II Pcodes

P0154 Oxygen sensor ahead of TWC, bank 2

Potential causes:

Open circuit in signal wire or ground wire

Oxygen sensor heating not functioning

Output stage in DME control module faulty

Internal resistance too high

Check:

– Wiring harness

– Oxygen sensor

– DME control module

P1119 Heating of oxygen sensor ahead of TWC, bank 2

Potential causes:

Oxygen Sensor Heating Before TWC, Bank 2

Check:

– Open Circuit

- Short Circuit

- Oxygen Sensor

If it is not the wiring then you need a new O2 sensor.

[Crystal Shine]

OBD II Pcodes

P0154 Oxygen sensor ahead of TWC, bank 2

Potential causes:

Open circuit in signal wire or ground wire

Oxygen sensor heating not functioning

Output stage in DME control module faulty

Internal resistance too high

Check:

– Wiring harness

– Oxygen sensor

– DME control module

P1119 Heating of oxygen sensor ahead of TWC, bank 2

Potential causes:

Oxygen Sensor Heating Before TWC, Bank 2

Check:

– Open Circuit

- Short Circuit

- Oxygen Sensor

If it is not the wiring then you need a new O2 sensor.

Thanks Loren. BTW....the sensor that I need to check is on driver side before the cat ( closest to engine) right?

[Loren]

On a Boxster - yes.