I pulled three codes and need help.

P0128
p0136
p0141

Is it just an 02 sensor? if so is it the precat or aftercat sensor?
Thanks guys,
A

 

afternoon bump!

 

I will try to remember to check when Iget home. That is where I have the codes list.

Wait a minute, we have them listed here:
https://www.s2ki.com/forums/index.php?showtopic=378792

 

P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

P0136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)

P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)


I would say the last two indicate some sort of problem with the first O2 sensor. The first one I have never seen before.

 

hmmm....weird....below thermostat regulating temp?

first 02 sensor is pre cat right?
A

 

late night bump!

 

Yes, the one in the header.

 

i'll prob take it to the shop. thanks bud.
A