I need to replace bank 1 senor 1 on a 2005 Avalon and bank 1 senor 2.

Yes, you have a problem. The temperatures should be the same. Get the whole coolant system checked as there are a lot of different reasons this could be happening.

As you are sat in the car looking forward bank 1 is on the right and bank 2 is on the left.

135 are bank one, 246 bank 2.

cheers-Steve

this car has only 1 bank ... front o2 senor is the one bank1 sensor1
and the rear one will be bank 1 sensor 2

hope it helps rate it

Thanks for choosing FixYa and welcome. You need to change the 02 sensor. This is the sensor in the back. It is called a oxygen sensor. It is located on the exhaust system.

bank 1 and bank 2 refer to the positioning of the sensor on the car, bank 2 just means the second one, so if you start out at your exhaust manifold and inspect the piping going back, the second O2 senor you find will be the one you need to change, it will likely be around or near the catalitic convertor.

throw scanner in teh bin and use old motto ,if it works leave well alone

p1130 refers to af ratio senor bankone sensor on. If you car has a six cylinder bank one is the side where #1 cylinder is located sensor one is the sensor closest to the engine. hope this helps

Should located on the rear cylinder head near the throttle body.

This car has a transversely mounted straight six I believe, which is really unusual, but that means it only has one bank, so "bank 1, sensor 1" will be the upstream O2 sensor (between the engine and the cat) and "bank1, sensor 2" will be the downstream sensor (behind the cat).

HI
yes there is two catalytic converters ???
one for any exhaust pipe bank (left & right) (bank 1 & bank 2 )
if you change the bank 1 ?? may be you need to change the bank 2 today?????
but not to change the same bank two time ???????

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