unSStoppable

iTrader: (1)

Well i dont use my predator tuning much anymore other than checking SES codes. Well the light came on the other day and it read:
P0155 Heater Circuit, Bank 2-Sensor 1 malfunction.
P0430 Catalyst Sys Efficiency Below Threshold (Bank 2)
So is this anything that needs immediate attention? Im not really driving the car, its going into winter storage soon, but im wondering if this should be taken care of before i put it away?
Thanks in advance

Mike@Diablosport

iTrader: (2)

Well, it seems like the sensor is reading low, which is triggering a false lean condition.
Mileage will suffer as the PCM is trying to add 25% fuel at part throttle to compensate for the 'lean condition'.

Thanks
Mike

unSStoppable

iTrader: (1)

thanks for the response...so (sorry to sound ignorant) where and what is the heater circuit sensor? Should i clear the code for ow cuz it prolly wont be driven till spring now. Just curious how serious this could be

Mike@Diablosport

iTrader: (2)

The heater is part of the O2 sensor itself, which is likely bad.

You can clear it and park it if you want.

jimmyblue

iTrader: (11)

It's not necessarily true that the heater is bad. It
is really complaining about the amount of activity
during warmup (slow or none). But this can be due
to sensor fouling / age, or exhaust construction if
headers are just throwing too much of the exhaust
gas and heater-element heat away. I got heater
codes after header swap with brand spank-'em
new NGK 'vette rear O2s in the front position. Yet
normal operation is fine.

unSStoppable

iTrader: (1)

That makes sense...I know my driver side cat has hit the ground a couple of times (lowered car and SLP headers(the headers ive had for three years so i dont think its just them)) on these bumpy MN roads and those hits prolly didnt treat the sensor well. Im doing a whole new header back true dual system in this coming spring so ill just put her to rest as is for now. thanks