i don't know if its the same for that year but i do know that on a 97 there is one under the car that bolts on to the exhaust and another between the engine and the fire wall on top of the exhaust manifold which for the 97 is hard to find and get to, i don't know if this will help but its all i can do to help
To answer this i will need to know whatsize engine you have.
Please answer the question. "How do you change an oxygen sensor in a 2002 Pontiac Bonneville
The oxygen sensor on a 1996 Pontiac Grand Am is found near the catalytic converter. It will be place on the piping which leads to the catalytic converter.
were is the crankshaft sensor located on a 1987 Pontiac Grand AM with a 2.5L engine
The 1991 Pontiac Grand Prix oxygen sensor is located on the outside of the air filter housing. You will find the sensor on the back side of the air filter housing.
location knock sensor 2002 pontiac grand prix gt 3.8 engine
The ECU is in the engine compartment on a 2002 Pontiac Grand Am. It is the sensor behind the converter.
It"s located on the rear manifold, between the firewall and the engine for the upper oxygen sensor(b1s1), and between the catalyst converter and the resonator for the second oxygen sensor (b1s2), between the pipe and the floor.
it is on the engine
The 1995 Pontiac Grand Am 3.1 liter engine crank shaft sensor is located inside of the rear engine cover. You will need to remove the rear engine cover in order to access the crankshaft sensor.
Screwed into the exhaust pipe
its before the cat around the header area