Greets! My 94 FMII car (installed circa 2000, RC550's, 12psi, BBBT, original
fuel pump) is cutting out under high boost/high rpm conditions. I sent a
datalog to FM and Jeremy replied,
"Your ATS & CTS look fine. You've got plenty of injector
on-time. So, if you're leaning out I'd have a look at your fuel pressure to see
if your pump is bad or filter is clogged. Should be running around 35 psi at
idle & around 45 psi if you pop the vacuum hose off the regulator. In boost
it raises pressure 1:1. "
I finally checked the pressure today and got 35 idle/44-ish with the vac source
removed. Max pressure (checked with the fuel line output blocked) was ~77psi.
I did notice that the behavior doesn't start immediately, but rather appears
once the car is good and warmed up.
What's the next step? I probably am due for a filter, but it seems somewhat
unlikely that I'd get good numbers in the garage with a clogged filter, no?
All input welcome- thanks in advance!
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