> My current exhaust hole,leak,is of the pin hole variety.It is after all 4
> headers come together ,and next to the oxygen  sensor(1.9).It wont idle .It
> stalls,backfires.has real bad drivability(whats new).I took it to a shop to
> have the exhaust checked.I had to rev the engine to keep it running for the
> mechanic to check it out. I sat in the van way up on the lift.A small leak
> at the o2 senser was the villian(still is).

Roger:

Buy a tube of muffler mud at your FLAPS and push a bit in the
pin hole.  It will seal for some time--maybe months.  Anyway,
it will confirm that the pin hole was your problem.  Muffler
mud is the duct tape of the exhaust....

                                Richard A Jones
                                Boulder, Colorado