what year JEEP> is that so hard to tell?
is your jeep and export model, not in USA?>
fix. ? fixing is last (unless gue$$ing is cheap plan?)
diagnosis is first. (after doing the skipped tuneup)
first/ first is to read the JEEP FSM on what it is , and the steps to isolate all errors. (true cause)
p013c (p zero)
i have 2010 3.7L and matching FSM. book.
i think it's 02 B2S2 errors. (bank2 sensor 2) aka as 2/2 sensor.
this nails it.
when you cut the throttle, the cat is full of fuel and
will not lean out.. so the o2 rear sticks high. (low oxy)
the cat eats all oxygen if its overloads with HC, (fuel)
this DTC catches that event.
my guess? is the right bank is running rich the cat is overloaded
and this test fails. not sure why.? no could it in the net bunny cloud.
we would check the live data stream on the right bank, 2,3,6
for gross fuel trim issues, or the o2s acting odd on that side. S1 and S2.
are you saying you can drive and no other DTCs are thrown?
no P03xx codes ever. are the spark plugs fresh,
not 50k old, ever do a tune up.