I got codes p1399 and p1259... Changed out my spark plugs first .. Car still seems to be pretty weak when running in neutral almost as if it's about to shut off.. I'm guessing know this could be the vtech solenoid ???
Yeah, it's either clogged or has gone bad. Try cleaning it out and swapping out the gasket first. If that still doesn't work, look around the FS threads. There should be a couple of people selling them.