Where is the O2 sensor on a 1990 Chevy Lumina?
The oxygen sensor is usually mounted in the exhaust manifold pretty close to where the exhaust pipe bolts on.
What could cause a trouble code 45 in a 1990 Lumina besides the O2 sensor or the coolant temp sensor?
You have a 91 Chevy lumina as it has on the manifold something that look like a spark plug but it is not as what is this and what does it do when the car is running or driving it?
From Underneath the vehicle locate the sensor and using an open end box wrench lossen and remove the o2 sensor follow the wire up into the engine compartment dissconnect from the connection, plug in the new 02 sensor and carefully fish it through so that you can install it as the old one was removed
Where is the O2 sensor and crank sensor located on a 91 Chevy Lumina 31L and is it fairly simple to replace yourself?
I have a 92 lumina with a 3.1 and I found the crank sensor to be located on the passenger side of the engine in the back of the engine NOT on the side of the engine below the knock sensor. Hello, in my experience, all O2 sensors are located in the exhaust just after the manifold. It appears easy enough to change. If it is the crank position sensor you are looking for, take…