Maybe I do not understand how the priming pump is plumbed. I thought it is in series with the lift pump. If true, fuel has to go from priming pump/lift pump to secondary fuel filter, then to IP. If the filter head banjo port is left open, supply pressure to pump cannot build.
Do you have a detailed diagram of the fuel system? It would really help me visualize how it is suppose to work.
Quote:
Originally Posted by Brian Carlton
I'm not following.
If the three way is open, you've got one line from the check valve, one line from the injectors (high side) and one line to the cigar hose.
Why won't the low side build pressure under this condition?
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