[Brian T.]

I have an '03 Tundra (V6) and just started getting code P0037 (HO2S Bank 1 Sensor 2 Heater Circuit Low)! Anyone have any ideas? :argue:

 

[smack]

You'll have better luck in the 1st Gen Tundra forum, do a google search too

 

[MASTER TOY. TECH.]

Do a read out on the sensor 1st to see what its at
might be a bad sensor
cat might not be reading
harness might be damaged