SOURCE: got code p0171 system too lean (bank 1)
This is probably referring to problems with your bank 1 oxygen sensor. Without the vehicle make, model and year I can't tell you where it is located. However, if you replace your front oxygen sensor that should clear up the problem. Also, if you do replace it, I always run some fuel injector cleaner through a full tank of gas at the same time. Hope this helps!
SOURCE: 98 chevy s-10 codes p0131, p0171, and p1133
http://www.obd-codes.com/
go there look up the codes there all there
SOURCE: I have a 2001 MONTECARLO SS it has a Po420
There are a number of things that could be causing this p0420 catalyst efficiency
code. The most common thing is the catalytic converter itself is no longer
functioning properly. The other likely thing is the rear O2 (oxygen) sensor
is no longer working properly. Other things could include exhaust leaks, damaged
exhaust pipes, damaged O2 sensor wiring/connectors, plugged catalytic converter,
etc.
The easiest thing to do first is a visual check of things. Visually inspect
the exhaust system for leaks, check the catalytic converter for dents, holes,
severe discoloration, and check for a rattle inside. If any of those symptoms
are there, the converter likely needs replacement. Then, visually inspect
the downstream O2 sensor (behind the converter). Check for broken wires, obvious
faults, etc. If all that checks out, you'll want to check the operation of
the O2 sensor. To do that, you'll need access to a scan tool or oscilloscope.
Check that the waveform is pretty steady. If the reading fluctuates then the
sensor is likely bad and will need to be replaced.
Chances are the O2 sensor has gone bad and needs to be replaced, you can pick one up at Auto Zone and they will have the step by step instructions to getting the job done. It's like replaceing a spark plug, you just have to get under the car to do it. Good luck and hope this helps.
SOURCE: codes P0171, P0174, P0440
This is usually an oxygen sensor, replace the O2 sensor located above the catalytic converter before replacing the evaporator purge canister.
SOURCE: Have code P0001, P0171, & P0300. Need to know
P0300 Random/Multiple Cylinder Misfire Detected
P0171 System too Lean (Bank 1) - Read Our Article On Oxygen Sensor Codes For Help With This Generic Check Engine Light Code
i could only find the 2 codes for you
try here
www.engine-light-help.com
what kind of shape are your plug wires in ?
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