Just to get a good starting point when I buy a new vehicle I do the following:

New plugs, wires, cap and rotor. New air filter, fuel filter, pcv valve. Change the oil and filter and check all fluids. When I get a chance I do the O2 sensor (if it's a single) and flush the rad.

Then go looking for problems.

On mine I ended up finding a large hole in the intake tube, a clogged cat, and a partially stuck open thermostat.

Glad you solved your problem, no matter how simple it was.

Joe

A gun in the hand is better than a cop on the phone.

98 Passport 33's, Supercharged, Calmini Bumper, rockbars, diff drops, Teralows, 4.77's, Aussie and ARB lockers, Safari snorkel, Optima red top.