Re: No check engine light and its a problem
That was "one" of my symptoms, too.
After replacing fuel filter, cleaning injectors (using strong concentration of additive to little fuel), changing spark wires, diagnosing fuel regulator/damper and fuel pump, compression testing, vacuum testing, fuel pressure testing - and noticing sooty tail pipe,
I finally spark checked my ignition coil pack.
It had little noticeable spark (although the engine easily started and idled well).
On close inspection, the coil had visible cracks.
If you can find a Kilovolt meter to read the output voltage - you can know what your coil is putting out and check the specs. New coil is around $100.