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Hi all I'm new and in trouble like I said I just fitted a engine into my car but now it won't start the fault code that is up is 4b90 rail pressure monitoring on engine start can any one tell me what sort of pressure should there be.? I have tested the leak back on the injectors and they seem fine.

Thank for any info given.:cry::cry:
 

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2,463 Posts
Hi all I'm new and in trouble like I said I just fitted a engine into my car but now it won't start the fault code that is up is 4b90 rail pressure monitoring on engine start can any one tell me what sort of pressure should there be.? I have tested the leak back on the injectors and they seem fine.

Thank for any info given.:cry::cry:
Check this thread, might give you a start: http://www.e46fanatics.com/forum/showthread.php?t=570913

G/L :)
 
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