Heater Circuit Error Code

[tommytt22]

2011 Sidi SV6 coming up with P0135 and P0155 error codes. I know these are heater circuit codes but how do i fix it and will i need any special parts considering i have an OTR and full exhaust? The car is tuned for them but I've never dealt with this before so I'm a little clueless.

Thanks

 

[lmoengnr]

Try replacing your oxy sensors.

 

[tommytt22]

i wont need special ones for highflow cats?

 

[lmoengnr]

i wont need special ones for highflow cats?

No, just replace them with standard sensors.