...fix. a po420 means that one or more of the following has happened. the easiest thing to do, is erase code with scanner. and see if it comes back. the engine coolant tempuature sensor may not be ...
...most of the time its the sensor that cause this,id try replacing the sensor on it,that usually fixes that code,but you have to get the code cleared off with a scanner ,and then re-scan it to
Question about Lincoln Navigator
six months...these problens will not overnight damage your car...however it needs to be checked and fixed ASAP..
...fix this emissions problem? The inspection code given to me was PO420??? po420 is catalyst system efficiency below threshold. meaning is--- could be down stream 02 sensors or a bad convertor. try buy ...
PO420 is (Bank 1) Passenger side Fix the misfires Replace both Converters Replace all 4 O2 Sensors Converters should have lasted a few more years A cop ignition coil is $59.00 & takes about 15 min
...PO420 NEED TO FIX SO I trouble codes PO174,PO401,PO420 NEED TO FIX SO I CAN GET IT SMOGGED IN CA. P0174 means Fuel Trim too Lean (Bank 2) P0401 means Exhaust Gas Recirculation Flow Insufficient ...
...PO420 code How do I fix kia carnival 2006 PO420 code The PO420 code is a generic code indicating a problem with the catalytic converter system efficiency below threshold. This issue can be caused by ...
...po420 code came up again. When I got home I took off coil pack from cylinder 2 to inspect and found moisture coming from where the rubber boot connects to the valve head and the heat shield tube.Only ...
...fix po420 on jeep liberty Look for vacuum leaks and exhaust leaks and fix accordingly. Make sure O2 sensors are working properly and are not stuck or lazy. Fix any misfires if any and when all else ...
Question about Lincoln Navigator
PO420. I just bought this car. Seem to run good. Have the 2000 Miata had any problem areas that you know of that would cause this problem? I HAVE A 2000 MAZDA MIATA AND IT IS BRINGING UP A CODE PO421,
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