Nissan Repair: 2001 Nissan Pathfinder, oxygen sensors, shaft seal

Question
I was wondering if he found out what was the problem with his truck..  I have so far replaced camshaft position sensor, two ignition coils ( think its by the spark plugs) bank one sensor 2 on the O2 side plus NUMEROUS other things related to this misfire issue!.. It's hurtin my wallet but dont want to dump the truck just yet..   Normally it was infrequent as the CE was on and it would register a O2 and I did not get to that imm..  Then it starts misfiring more frequently ..  I have p0140, po1320, po1145 reported..  Today I did the 02 sensor and it was running fine.. then the next start up its back to hesitant misfire.  Usually it will misfire for 5-10 min until it falls into a good running cycle.   Any help would be great if anyone knows.

Jeremiah

Answer
Jeremiah,

I would replace all of the oxygen sensors (those that you have not replaced).  Also, check to make sure you check the distributor for oil on the optics.  That is, there is an optical shutter under the distributor cover.  If the shaft seal fails it will cause the engine to misfire...