What could this code be ? Car runs fine , But it does seem to idle a little
Intake Air System leak If car was serviced check your air cleaner for all connections they may have left a vent hose off
SOURCE: 2000 VW Jetta VR6 My
You may have a bad coil pack - try moving two of them around and see if the misfire follows the coil pack or stays at the same cylinder. If it follows the coil pack, get a new one. If it stays in the same cylinder, inspect your spark plug wires and make sure the plug is gapped correctly.
SOURCE: trouble codes p0011 and p0021
IT HAPPENED THAT SOMEBODY CHANGED THE CLUTCH AND THE FLYWHEEL AND INSTALLED THE WRONG FLYWHEEL AFTER WE INSTALLED A NEW FLYWHEEL THE PROBLEM WAS GONE.BUT THANKS ANYWAY.
ATT.:RAMON JIMENEZ
SOURCE: 2005 Ford Taurus SE 3.0L V6 OBD Codes P0171 and P0174
The P0420 code is a Catalytic converter efficiency code check the compression.Swap the #1 injector to a different location to see if the code follows.Test the coilpak. A cracked exhaust manifold is the most likely cause p0171 and 0174 Induction air leaks, vacuum or some kind fuel restriction, weak fuel pump, restricted fuel filter etc.You also could have an exhaust leak near the upstream o2 sensor. If youtake it in they will probably use smoke to find out where the leak is.
SOURCE: 2005 Jetta Exhaust Malfunction Light on
its pretty new so im guessings its the oxygen sensor needs replaced, otherwise it might be the catalytic convertor the sensor is cheap the catlytic convertor not so cheap
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