Reply to "Fuel pressure ok?"

jffrMember

If you have a steady 40 psi fuel pressure reading, then I would say that you don't have a plugged filter or a fuel pressure issue. Whose ECU are you using to run your injection system? Back firing could indicate an ignition problem. You need to get into the program and check the fuel air ratio settings along with your ignition settings. I am running a FAST XFI 2.05 system that is port injection and in sequential mode and my normal fuel pressure is about 39 psi. I also have a 9.2 deck Fontana block, but am using CHI 3V heads and displacing 388 cubic inches.

4/15/204:14 PM

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