Last weekend my XTerra started chugging and I barely made it home going 20 miles an hour. My husband thought it was the timing belt, which he replaced and it is not fixed. He now wants to reset the pcm, but is having trouble locating it.

Bad battery

I find it dubious that a vehicle 13 years old only has 61 thousand miles on it. They are 4 cylinder engines and the belt needs to be changed every 65 thousand.

WHERE CAN i BUY THE BASE STAND

You need the engine control computer scanned for faults, do that first.

check u r alternator

last year, OBD1 car (dumbb ECU)
no scan tools for it
if you run on the road with that hack , and wreck
expect a nice fire. fuel fire.
if you used a voltmeter and say 12vdc there, all hotwiring stuff
need not be done. (
it stalled (misfire)
and then would not what? start but cranks ok?
4wd?
3sp ,4sp auto or 5speed stick
16v engine or 8v, both are G16s but EFI radially different.
16v is MPI with 4 injectors, 8v is 1 injector TBI
try a new
cap,.rotor spark wires and spark plugs yet?
cant burn fuel with bad spark
i guess the cam bent did not slip as it run ok later, but is 60,000 mile belt. and will slip ignored.

next time it stalls
check headlamps they work, and all electric
then see if CEL glows key on, i must or ECU lost power
it has 3 fuse that can rust, IG coil, FI, and DOME.
the CEL must glow, is first checks.

its known as an interference engine however since it was idling i would give it 60/40 your favor.put a belt on it and hope for the best!

Check your distributor, Ignition control module, cap and rotor. Or it could be a map sensor.<

On a 3.3L engine V-6, Nissan recommends replacement every 105,000 miles, note that this is an interference engine, that piston to valve damage will happen in the event of a timing belt failure.

Xterra with 2.4L and 4.0L have timing chain only, no timing belt.

Airflow sensor very well may cause it , and Throttle position and temperature sensor too.
All of it has to be checked with good scaner , that can monitor values and data from ECM.
You need to find a better shop.