Just wondering why my fresh rebuild runs for like 5 min. then sputters and
stalls.   We seem to think it is the oxygen sensor.    When it runs , it
purrs.   A little bit of white smoke, if that is a clue????   Before i get an
oxygen sensor,
i just would like to see what others thought.  Local parts guy wants 167.00
for a new sensor!!!   I will look elsewhere, thank you.   Any other advice is
greatly appreciated.

Thanks in advance,

Paul Bucco
87 wolfsburg ed. vanagon 2.1 auto
65 21 window
71 squareback auto trans.