Well basically ive been having this weird problem whenever i turn the key in the ignition cranks and turns over immediatly but after it turns over it kinda like stumbles upon the rpms stumbling up and down. Its just really weird ive never had this happen before.ECTS changed, fuel filter, plugs,iacv cleaned, throttle body cleaned. The only thing i havnt cleaned/replaced is the air filter donw know if this would affect start up.

 

Fuel pump? Coils?