Need 02 Sensor Diagram Please help
Posted 22 March 2006 - 07:00 PM
Posted 22 March 2006 - 07:08 PM
Posted 22 March 2006 - 08:00 PM
BrianElkG, on Mar 22 2006, 11:00 PM, said:
The code is telling you the circuit the problem is affecting and not actually the problem. A miss fire for example can cause a P0133 code, which is the o2 switching slowly. The o2's job is to read the exhaust and tell the computer through a voltage change, so the computer can adjust the air fuel ratio. A vaccum leak or miss fires along with others conditions can all effect the reading of the o2. Unless the code is refering to the o2's heater I would search for the reason for the misfire first! Also asking for help would be much better if the code was given to us. There is a possible twenty or so o2 codes available, and not knowing which one you have is hard to lead you in the right direction. Hope this helps, Gene.
Posted 23 March 2006 - 11:26 AM
Hooznext, on Mar 22 2006, 10:00 PM, said:
:vodka22: There should be one sensor off each exhaust manifold (two and total) that monitor burnt mixtures and a third after the catalytic converter (this one has nothing to do with air/fuel, yet the cat's working efficiency. Is there a missfire code also with the O2 code(s)? The codes you are getting would help out a lot.
This post has been edited by csiamanis: 23 March 2006 - 11:27 AM
Posted 23 March 2006 - 12:11 PM
Posted 23 March 2006 - 12:18 PM
slim_77803, on Mar 23 2006, 12:11 PM, said:
Have you checked for vacuum leaks at the intake manifold, intake duct, etc? Also, did you replace the spark plug wires too? how about the fuel injectors? Can you explain the problem in detail? :vodka22:
Posted 23 March 2006 - 08:52 PM
Posted 28 March 2006 - 10:46 AM
Posted 28 March 2006 - 10:57 AM
slim_77803, on Mar 28 2006, 10:46 AM, said:
What code is it throwing?
Posted 28 March 2006 - 05:39 PM
Posted 28 March 2006 - 06:20 PM
Posted 28 March 2006 - 06:57 PM
Posted 28 March 2006 - 08:09 PM
slim_77803, on Mar 28 2006, 06:57 PM, said:
I would suggest using the scanner to see if it can tell you anything before spending any money. It makes sense that the car would run fine for a little while after resetting the computer because the computer goes back to a default program and has to relearn and readjust the settings. I would change the TPS if you are getting a TPS code. Can you tell me what codes you were getting so I can look into them more?
Posted 08 April 2006 - 04:52 PM
Posted 08 April 2006 - 06:57 PM
slim_77803, on Apr 8 2006, 04:52 PM, said:
P0122 - Throttle Position Sensor circuit, low input - Test the throttle position sensor or replace it. Make sure all wires are not defective.
Po420 - Catalyst system efficiency below threshold, left bank - This could be a faulty 02 sensor or catalytic converter. Does the exhaust have a strange odor, like sulfur?
P1406 - I cannot find it.
P0302 - cylinder number 2 misfire detected. Check the spark plug wire and plug on the number 2 cylinder.
Posted 08 April 2006 - 09:11 PM
slim_77803, on Apr 8 2006, 08:14 PM, said:
How do you test the Throttle position sensor itself? I think I know how to test the wire connection but not the sensor.
How many miles on the engine? I would probably just replace the sensor since it is fairly cheap and easy to do. You can test it with a DVM. I cannot remember the exact procedure, but it is simple and I will look it up for you.
Posted 08 April 2006 - 09:36 PM
P.S. Is a DVM-digital volt meter or something like that? I know what one is I'm just not sure what the intials stand for.
Posted 08 April 2006 - 09:41 PM