Fuel Filters

David G

Well-known Member
I am finalizing design for my EFI. I currently have 2 fuel filters, one clear on discharge of tank and second one before injectors. Can you tell me what automotive injection systems use for filters. I am concerned with the second filter plugging up and over pressuring the system. My return back pressure filter is after that. I would like to remove the second filter, so asking for opinions.
 
I would leave both primary and secondary filters in place.
If you are worried about over pressuring install a adjustable fuel relief bypass valve at the secondary filter and a fuel pressure gauge in the cab.(Gauge T-ed in post filters)
I have a gauge in all my vehicles, they work great for monitoring fuel system health at all times at a glance
 

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