Best Answer

1)Upstream sensor is located in the "y" pipe ahead of the catalytic converter. 2)Downstream sensor is located between the catalytic converter and the expansion chamber.

User Avatar

Wiki User

โˆ™ 2006-04-24 17:27:02
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Where are the oxygen sensors located on a 1999 Monte Carlo LS 3.1L?
Write your answer...
Related questions

Where are the oxygen sensors located on a 1999 Monte Carlo LS?

It is located in the Y pipe of the exhaust.

How many oxygen sensors is on on a 2001 Monte Carlo ss and what is bank 2?

There are 2 oxygen sensors on a 2001 SS Monte Carlo.

Where are the oxygen sensors located on a 2002 Monte Carlo SS engine?

There is one before and one after all catalytic converters.

How many oxygen sensors does your 1996 Z34 Monte Carlo have Where are they located?

There are two O2 sensors on the 96 Monte z'er. The upstream sensor in located in the "y" pipe before of the cat. The downstream sensor is located after the cat but before the expansion chamber.

Where are the electric cooling fan sensors located on a 95 Chevy Monte Carlo LS 3.1L?

The 1995 Chevrolet Monte Carlo cooling fan sensors are located on the firewall, in the engine compartment. The cooling fan sensors will be on the passenger side of the firewall.

How many 02 oxygen sensors does a 1995 Z34 3.4L Monte Carlo have?


How do you know if the oxygen sensors is bad on a 1995 Monte Carlo z34?

Have vehicle scanned

Where is the transmission sensor located on a 2000 Monte Carlo?

The transmission has more than a dozen sensors Which one?

Where are the oxygen sensors located on a 1998 Monte Carlo LS?

They are always on exhaust system usually one or 2 on manifolds if you have 2 banks before convertor and 1 behind convertor

Where is the Body Control Module located on a 2001 Chevy Monte Carlo?

were is the bcm located on a 2000 monte carlo

1999 Chevy Monte Carlo charcoal canister location?

where is the vaccum canister located on a 96 monte carlo

Where is the oxygen censor on a 2001 Monty Carlo?

There are two oxygen sensors on your monte. One on the back side of the motor right after the coupler for the exhaust manifold and downpipe. The other is behind your catalytic converter.

2004 Monte Carlo Oil Pressure Switch Location?

where is the oil pressure switch located on a 2004 monte carlo

How many O2 sensors are on a Chevy Monte Carlo?

There are two, one located directly behind the rear Exhaust Manifold and one near the Catalytic Converter.

Where are the cylinders located on an 05 Monte Carlo?

In the block.

What city is the Monte Carlo casino located in?


Where is the low coolant sensor on a 2002 Monte Carlo?

On a 2001 Monte Carlo it is located on the radiator just below the radiator cap.

Where is the fuel filter located on a Chevy Monte Carlo?

On a 2000 Chevy Monte Carlo it is along the frame rail on the drivers side

Where is speed sensor located on 1984 Monte Carlo?

The speed sensor on a 1984 Monte Carlo is located on the output shaft. The speed sensor is typically driven by the gear of the vehicle.

Can you see a Picture of a 2002 Monte Carlo 3.8 engine?

where is the mass air flow sensor located on a 2001 chev Monte Carlo

Where is the Monte Carlo battery located?

The battery on the Monte Carlo is under the hood. It is under the washer fluid bottle, which has to be removed to reach the battery.

Where is a speed sensor located on a 1996 Monte Carlo Z34?

It is located in the transmission.

Where is the speed sensor in a 1996 Monte Carlo?

It is located on the transmission.

Where is the battery located in a 1989 Monte Carlo?

In engine compartment

Where is the crank position sensor on a 1995 Monte Carlo located?

The crankshaft position sensor for the 1995 Monte Carlo is located on the front of the engine. It is just to the right of where the crankshaft comes out of the engine.