My O2 sensor is probably due (factory original!) but the Link goes
open-loop at WOT so the O2 sensor behavior can't be playing a role here.
From: [email protected]
To: [email protected]
Subject: RE: 94 FMII Cutting out at high boost/rpm
Date: Mon, 2 Aug 2010 18:25:45 -0500
Bad oxygen sensor? My car cuts out and bogs at steady
cruise with a bad oxygen sensor.
-----Original Message-----
From:
[email protected]
[mailto:[email protected]]on Behalf Of Robert
M
Sent: Monday, August 02, 2010 5:14 PM
To:
[email protected]
Subject: 94 FMII Cutting out at high
boost/rpm
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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