How long does it take to replace an upstream O2 sensor?
The upstream sensor would take about 1.2 hours to replace and the total for parts and labor is $206.08. If it was the downstream sensor the price would be $203.08 and would also take about one 1.2 hours to replace. Please consider replacing your sensor through YourMechanic.
How do I test my upstream oxygen sensor?
To perform the actual test, start the car again and check the voltmeter’s voltage readings. The o2 sensor’s voltage should fluctuate within the 100mV – 900mV (0.10V to 0.90V) range. If it is within this range, the o2 sensor is operating normally and you can stop testing.
How to replace an O2 sensor in a VW Jetta?
If you have one, begin your research by calling your VW dealership and see how much they would charge for a front sensor; some old ones may be on clearance. Tools you will need to replace an O2 sensor in VW 2.0L engines. Most of these tools are pretty common in a toolbox.
Where is the upstream sensor on a Jetta?
The upstream sensor is located right before the catalytic converter and the downstream sensor right after the catalytic converter. Disconnect the black, negative battery cable. Raise the front of the vehicle using a floor jack and safely support it on two jack stands if necessary.
Why does the Check Engine light come on on a VW Jetta?
Oxygen sensors can change the way that your Jetta’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
When did the Jetta start using wideband sensors?
At some point between 1995 and 2002 (I’m looking it up), Jetta began using wideband sensors. If you have one, begin your research by calling your VW dealership and see how much they would charge for a front sensor; some old ones may be on clearance.
https://www.youtube.com/watch?v=m69Kp1JeIAk