96 engine misfires randomly

[coug65]

First and foremost, first post... looked for a TI forever before finding one last year with 133K. love these cars.

Has run excellent up until a month ago. While below 3K RPM it will occasionally 'lag' .. not sure if it's misfire but there is a sudden loss of power. If i push the gas harder or downshift it will take off and runs strong.

I can't seem to pinpoint a pattern other than it happens more frequently when the engine is cold and it rarely if ever happens above 3K RPM.

There is no check engine light/code and if I gun the engine it appears to run strong.

I tried fuel injector cleaner and it seemed to help a bit for awhile but not consistently.

any help is most appreciated.

thanks.