Q: Does a bad oxygen sensor make the car slower when in full throttle ?

asked by on March 19, 2017

I dont know whats wrong with my car i used to race with my friend and i usually win but now after a while when i race him he wins. I have a stage 1 apr mk7 gti and when the mechanic scanned it says i have a bad oxygen sensor. Is it possible that a bad oxygen sensor make the car slower ? And if i replace to a new one will my car be normal again and fast like before ? Or are there any issues that maks my car slower?

My car has 60 miles.
My car has an automatic transmission.

Oxygen Sensor Replacement $123.80 - $932.74 Get a Quote

Hi there. It depends on whether or not you are racing your friend on a NHRA sanctioned Drag Strip or illegally on the street as to whether or not the O2 sensor is causing you to be slow. If you’re racing on the street, the O2 sensor is fine and has no impact. If you are racing on the drag strip; yes - a faulty O2 sensor will cause poor engine performance, reduced fuel economy and other problems. Two pieces of advice from a Licensed NHRA Drag Racer, first, KEEP IT ON THE TRACK; not the street. Second, have a professional mechanic complete a check engine light inspection to tell you what O2 sensor is faulty, have it replaced and reset all error codes.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do you set the Auto Unlock function?
Your car comes standard with an Auto Lock and Auto Unlock feature that locks and unlocks the doors automatically. While the Auto Lock function locks the doors when you move the gearshift out of park and into any gear, the...
Brake light comes on.
Hi, it sounds like the brake light switch needs replacing (https://www.yourmechanic.com/services/brake-light-bulb-replacement) under the dash. I would have a technician such as one from YourMechanic replace it for you.
Gauges have gone dark
Hi there. Since your issue is intermittent this would lead me to believe you are experiencing a bad connection behind your dashboard. A loose connection between your light bulbs and sockets will cause this problem along with a fault in...
Catalyst system efficiency
Hi. There are a few things to check out when receiving this code as it doesn't always mean the catalytic converter is going bad. The car has multiple oxygen sensors that test how efficient the converter is performing. If the...
Car starts but then stalls
Since this issue did not present itself until after the replacement of the ignition switch, it most likely was created during the installation or reassembly process. In order to replace the ignition switch, the steering column needs to be lowered....
05 Buick rendezvous power steering pump and pulley
No, these are two different styles of power steering pumps. I would recommend purchasing the correct factory power steering pump for your 2005 Buick Rendezvous. If you need assistance with installation, a certified professional from YourMechanic can come to your...
Just got a new radiator now it's making a clicking sound
Hello and thank you for contacting YourMechanic. With the information that is given, the only thing that can make a clicking sound after installing a new radiator is a radiator fan (https://www.yourmechanic.com/services/cooling-radiator-fan-motor-replacement) is coming in contact with the radiator, the...
Clunking sound when starting to move in first gear. 2002 Subaru
Hello - there is a flex disk joint (https://www.yourmechanic.com/parts/drive-shaft-flex-joint) on the driveshaft of your Subaru which connects to the transmission right about where the center console, and the noise you mention, are located. This flex disk deteriorates over time, due...
There is a rattling when accelerating only in my 2012 Mitsubishi Lancer
Hi there. This is typically caused by a loose exhaust heat shield. Over time these will come loose and cause this to occur. In most cases the heat shiled can be welded to keep it from making noise. In other...

Related articles

Symptoms of a Bad or Failing Speedometer Cable
Common signs include the speedometer needle wavering or not moving, squealing noises behind the dashboard, and the Check Engine Light coming on.
How Long Does an Injector Control Pressure Sensor Last?
A A diesel engine is a very sensitive and complicated piece of machinery. Getting a diesel to crank will require a number of parts to work together. Among the most vital systems on a diesel engine is the fuel injection....
P0337 OBD-II Trouble Code: Crankshaft Position Sensor A Circuit Low Input
P0337 means that the crankshaft is suffering because of low voltage. This could be due to sensor not being aligned properly or electrical problems.