tigerbite84

Hello all,

I just had the V3 supercharger kit installed on my 997.1 4S. I also had new injectors, spark plugs, and coil packs installed. Previous aftermarket modifications are Fabspeed maxflo mufflers and x pipe. Now I am getting a two CEL codes:
- P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)

I tried searching for the fixes on these codes but they are pretty general.

Also, with my durametric, I also have 3 fails for my ready status on my DME:
- Catalytic converter efficiency
- secondary air system
- oxygen sensors

I didn't get these codes before my s/c install?

Any help is greatly appreciated!

Steve

vector01

Don't know anything about the SC install process for the 997, but it sounds like the post-cat o2 sensors are unplugged. I'd check there first.