1999 Toyota Corolla
Car had short touch of the shakes in the morning, parked it for 8 hrs, drove half a mile, and it got the shakes bad and seems like it wants to stall out and the check engine started flashing. After a minute it went back to normal, and then the whole thing happened off and on the last half mile home.
I was told the catalytic converter was in bad shape last time I took her in so I’m assuming that’s it. Friend of mine suggested driving it hard to burn out impurities in the cat, but I’m worried about damaging the engine. Going to replace the sparks and spark wires (they’re about due anyways), any other info or suggestions would be much appreciated.