Help anyone, on my way to base my engine light and trac light came on and then the engine light started flashing periodically. It started jerking really bad about 10 minutes later. I recently cleaned the iacv about 2 weeks ago because it wouldn't stay idled. Also put a k&n air filter on it, does anybody know what can be the issue with the jerking now?

 

No way to tell what's wrong without first retrieving the trouble odes, else it's just guessing.

Phil