2003 Mitsubishi Montero Q&A

2003 Mitsubishi Montero Question: trouble codes

pls help dont know what to do, i get this trouble codes 99-2005 mitsubishi montero/pajero shogun from japan, diesel 4m41 engine 3.2L turbo 41 thrt val sol 31 can comm. 22 vgt cont. prs. 51 egr pos snsr. -
Answer 1
Pajero 4M41 year 2004 31 can comm 52 vgt cont prs 51 egr pst snsr -