Mine did not turn out well. I cleaned the engine with a pressure washer and applying GUNK engine degreaser. I let the engine running while pressure washing it. Did not cover any electrical components hoping that I'd spray these as less as possible. Nonetheless, after leaving the car wash, the engine would not run smoothly over 2000 rpm, had hard time shifting from 1st to 2nd gear. Check engine light came on. I barely made it home. Checked plugs, wire set, and coils and look dry and functional. OBD II reader returned the following 11 codes of which 4 were pending: P1781, P0107, P0336 (and P0336 P for pending), P0341 (and P0341 P for pending), P0342 (and P0342 P for pending), P0405, P0700 (and P0700 P for pending). Later P0700 P disappeared and only the permanent one stayed. I can start the engine, it idles fine but when rpms go up, it starts to not work ok. Any idea where to start with?