If your car has OBD2(96 and newer) they will hook up a code reader. If you do have a bad O2 sensor the scanner can tell which one is bad. Most v6 and v8 engine have 4 sensors.
Your "KNOCK SENSOR" is probably bad. Take it to an auto parts store and they can check it for you. (I go to Auto Zone)
Have the code read for free at auto zone or advanced auto could be a number of things maybe just a dirty sensor
on my car it was the front oxygen sensor. take the car to auto zone and they can put a computer tester on it and tell you what the problem is. they test it for free...
go to auto zone and have them run a computer test on your car
The best place to take your car is "Auto Zone" because they have qualified auto technicians who are very capable of handling any car care concerns that you have.
The only way to check is to plug your car's computer to the scanner which are avalable at the auto parts store. AUTO ZONE does it for free.
Try disconnecting/reconnecting Oxygen sensor connector. You can also take the car to an auto zone or advance auto parts. They will plug a computer up to your car and check what error codes it has. A check engine light ususally means something with emmisions is a wrong. They can also clear the code for you .
Possible problems 1-BAD SENSOR-Most likely the manifold pressure sensor. Take car to Advance Auto Zone or Advance Auto Parts and have them scan for trouble codes that might be present.They will tell you if you have a problem code and what it means.They do this check for free. 2-IF YOU DON'T HAVE TROUBLE CODES OR BAD SENSOR-When was the last time you replaced spark plugs,wires,fuel filter,air filter,and pcv valve?All of this can affect the way your car drives.
You can get a car bumper painted at a local auto body shop such as Maaco. You can also get bumper work done at your local Auto Zone location. You can learn more about Auto Zone at the official Auto Zone website.
Take it to a place that check and charge batteries like the auto zone or kragens.
You can go to your local Wal-Mart to get a car cover at a reasonable price. You should also check out Auto Zone and Advanced Auto Parts as well.
A Brain &Money. to buy an appliance sold at auto zone for very cheap prices.In the zone, Auto Zone.