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Chris (aka-Moose)
Chris (aka-Moose), Auto Technician
Category: Toyota
Satisfied Customers: 947
Experience:  16 years of experience
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I have a 03 Toyota 4runner Sr5 4.0 V6 I replaced the

Customer Question

I have a 03 Toyota 4runner Sr5 4.0 V6 I replaced the upstream o2 sensors and now have a P2241 code for low positive current on bank 2 sensor 1. The sensor is the recommended Bosch sensor and I did not have this code before changing the sensor. I checked the a/f heater fuse it is fine. this is my only vehicle and is required to pass nys inspection in the next few days and I am at a loss with this problem
Submitted: 11 months ago.
Category: Toyota
Expert:  Ted Ritter replied 11 months ago.

hello and welcome, bank 2 two is on the driver's side, is this the one you replaced, what code were you getting before replacing the sensor?

Customer: replied 11 months ago.
No I was told bank 2 was the passenger side so I replaced that one. Before was a code for poor convertor efficiency
Expert:  Ted Ritter replied 11 months ago.

Thanks for the reply, the P2241 is or the driver's side (bank2) these are cylinders 2,4,6

Bank1 includes cylinders 1,3,5 bank one always has the 1 cylinder. on a V6 Toyota engine.