Recently up a 1998 CRV LX, 5 Speed. Was driving fine for a few days until one day it just started misfiring and running terrible. I could barely limp it home. Got home and ran the codes. P0135, P0171, P0301, P0302, P0303, P0304, P0300, P1456, P0170. So basically misfire in every cylinder, evap leaks and o2 sensor. Looking for advice as to which direction I should go. Ran perfectly fine during test drive and the week after.

 

check the cam timing, wondering if it jumped a tooth.

what's it like at idle?