99 Miata - Rough Idle / Poor Acceleration - No Codes
 

Looking for some insight from the collective...

I picked up a '99 NB automatic with 125K miles as a project car. The car is fine once up to speed but starts off painfully slow and idles rough at stops. I've lurked the message boards and based on similar posts have cleaned (throttle body, manifold, MAF, etc...) have replaced (air filter, plugs and wires, fuel filter, valve cover gasket, etc...) and have drained/added (oil, transmission fluid, seafoam, etc...) to no avail. I've tested for vacuum leaks (negative) and the car isn't throwing any codes.

I read some posts that these cars are infamous for developing a wobble in the crank shaft pulley. Mine is wobbling ever so slightly but not like I have seen in various videos.

Based on the aforementioned, would you consider the wobble the likely culprit or is there something blatantly obvious I'm missing? With a slight wobble, is there hope of tightening the pulley or otherwise resolving it or will it worsen in time?

Thanks for your insight!