92 pickup 5spd 2wd 22re; new O2 sensor, catalytic converter, plugs, air filter, oil change and filter, lucas tune up in a bottle. When cold outside or at higher rpms check engine light flashes and trucks power bogs down. It only happens every once in a while. Yesterday I thought it was going to staul.

 

Did you have the problem before all the parts?

Have you pulled the codes for the check engine light?