Codes: Please Decipher

Land Rover Discovery - Series I -

2 codes:

PO300
PO461

("check engine light" is lit)

Please help me decipher...and your thoughts. Please e-mail me directly if you are seeking any additional information - landroverxd@hotmail.com

 

PO300 = multiple cylinder misfire. Can't recall the other at the moment.

 

Thanks for all your assistance...currently changed a few gas-related parts regarding the PO461 (did not cover teh VIN # you had posted)...and as far as the misfire code goes, using Techron the next few gas fill-up's...and will be watching it closely...if you come across any other data/advice...feel free to contact me. Thanks again for all your assistance!