2003 Isuzu Other Repair Question
Topics covered: Compression, Engine, Fuel line.
Mileage: No information provided.
Mileage: No information provided.
Asked on August 9, 2011
Lost
2003 isuzu box truck code po300 changed fuel pump mass air flow plugs coils are good
Answer
Replied on August 9, 2011
P0300 is random misfiring and it could be due to clogged fuel lines/filter, engine compression or fuel pressure other than those you have checked/replaced.