John Deere 4.5L - Diesel Performance Chips
Common Rail - Tier III
1 line off Pump to top of engine to a Common Rail
Off Common Rail A Line to Each Injector.

Commonr Rail - Tier IV
1 Line off Pump to top of engine to a Commonr Rail
Off Common Rail A Line to Each Injector

Stanadyne Pump
6 Lines off Pump to each Injector
7 lines to Pump ( 1 is a feed line )