I have a 1999 isuzu amigo with a 2.2L motor, which i have replaced with a 2.2L motor from a 2000 rodeo. This problem was happening with the other motor. codes P0300 and P1441 are showing up when i have computer hooked up, but don't want to replace more than i have too. It will not pass inspection with engine light on. Anyone having or had this problem with some advice it would be appreciated.

what kind of spark plugs ar ein it and how old are they
for the p01441 may be a purge valve hanging up