I Have A 2000 Lexus es300 platinum series car.It has been running real rough and shaky.The check engine light comes on when i read the code the codes are p1130 and p1135 & p1175.What should i do to fix this problem.Thank You Jamie

 

The first two relates to the oxygen sensor (bank 1 sensor 1). Open up your hood and look down at the exhaust manifold. You will see the oxygen sensor. Replacing this should at least fix the first two codes.

Can't comment on the last code. Never seen a P1175 pop up on a Toyota before.. only BMW and Hyundai.

 

thanks where is bank 1 oxygen sensor in front of motor or rear of motor the code was p1171 i went to the auto shop today the guy up there sayed he would switch out the o2 sensor and see if the code still ran the same it did so could both o2 sensors be bad i guess

 

Bank 1, sensor 1 is in front of the engine. It's the closest one to the radiator.

 

could u tell me where bank 2 is thanks

 

if you need the o2 sensor by the radiator, let me know. I have one that is brand new in box that I don't need.

 

Bank 2 is on the other exhaust manifold between the engine and the firewall. The sensor is directly connected to the exhaust manifold. Don't be confused by the one that's on the y-pipe itself. There are quite a few sensors on the car.

 

This is not correct. Bank 1 refers to cylinder 1, which is close to the firewall. Bank 2 is close to the radiator.

 

Correct. I was looking at the diagram the other way around.