I get a hesitation before enging gets warmed up. I step on excelarater and it acts like it wants to die out then it catches and away we go. After the engine warms up then it runs fine. No missing and idles smooth. I changed fuel filter ran Tectron in fuel, and new plugs. Any suggestions.

Sounds more like an air sensor problem you should also check the air filter

Check your ignition timing. Check distributor function.

Check your ignition timing. Check distributor function.
i believe a 98 taco doesn't have a distributor, its DIS

Ignition is controled and advanced electronicly I checked the timing on my 93 just before I sold it, shocked the hell out of Me when I saw that it was right on the mark with over one hundred fifty k.

is the pedal hard to push from a stop after being warmed up?

i believe a 98 taco doesn't have a distributor, its DIS

DOH!

Thank for all replies.No the pedal remains the same. However I did change plugs again and it is a lot better, with more power, Hesitation is still there, but not as pronounced as before. I went with Bosch Platinum and gapped them at .31 I rechecked the gap on the Denso standards that I had installed 3500 miles ago, and they were at .32