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Discussion Starter · #1 ·
Hey y'all! Got a question on the lml fuel system So I replaced the engine in a 2015 lml with a 100k mile engine. It cranks but wont start and while cranking rail pressure only shows 260-300 ... I can start it with starting fluid (I know I'm not supposed to) but it'll run on fuel if I keep it at 2k rpm or higher and rail pressure jumps up to 8k psi any suggestions? Thanks in advance
 
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