Date: Mon, 24 Dec 2007 06:11:51 -0800
Reply-To: pensioner <al_knoll@PACBELL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: pensioner <al_knoll@PACBELL.NET>
Subject: A Christmas Goose
In-Reply-To: <200712100503.lBA53XoS026772@flpi125.prodigy.net>
Content-Type: text/plain; charset="us-ascii"
Beset by demons. The venerable svx camping box is NOT on the road. All
relevant commentary invited that might shed some light on the demonic
infestation.
>>>>
Posted to the subaruvanagon and svxvanagon groups:
After the demise of my long suffering exhaust system (tacoma) with
it's myriad re-welding patches and lousy leaky performance,
installing the new system has given me a troubleshooting opportunity.
Posted to svxvanagon group:
Troubleshooting a bit of a snit with a 92-93 SVX installation whilst
everyone else languishes in the sun a Bahia de los Angeles. For those
of you aware of the selectmonitor software/cable etc: I would much
appreciate a known good ini file for the 92 vintage SVX. Short of
chanting and calling an expensive exorcist one or two of the best are
completely bumfuzzled over a very rich running problem. Details can
be provided and later discussion encouraged but for now I would
dearly love a known good selectmonitor.ini file as a christmas present from
the gathered net.wisdom.expertise.
<<<<
Details core dump somewhat incomplete and ongoing:
What we know, what we don't know and what we've done.. Not in chronological
or any other logical order
What we know:
A. The Tacoma exhaust system was far beyond the end of it's useful lifetime.
Leaky both through cracks and poor alignment with the head. No longer
maintainable and causing EGR and O2 Sensor degraded performance.
B. The timing belt was at 60+Kmi and needed to be replaced per PM
recommendations.
C. There was a 'whirr' in the area of the timing belt.
D. The O2 sensors would not likely be savable due to age and corrosion.
Should be replaced.
E. The Tacoma Oil pan had a poor drain plug housing implementation resulting
in leaks at the plug. Repair or replace with MCM large capacity pan.
F. The van ran as usual on arrival even with the abovementioned
shortcomings. Fuel consumption was 13-14mpg measured with GPS
for the previous several thousand miles.
G. After installation of the Exhaust system using the MCM recommended
components, replacement of the questionable O2 sensors, installation of the
improved oil pan, replacement of the Timing belt and the defective rollers
and the plastic camshaft bearing covers, installation of the heat shield,
the van showed ~5mpg fuel consumption and an overheated Catalytic converter
after 25miles on the road at highway speeds.
H. Walker SVX O2 Sensors drop shipped to MCM per recommendation.
I. Measuring the new O2 sensors at the sensors gave 0.011 V (11 MV) steady
at both sensors.
J. Measuring HC gave >600ppm with the new sensors.
K. Measuring HC with the old sensors re-installed gave ~20ppm at idle.
voltage not measured.
L. The overheated Catalytic converter caused some melting of the taillight
wiring harness insulation on the Drivers side.
M. ECU fault light set on first road test.
N. ECU does not dump codes/show codes when queried using jumper diagnostic
method.
O. <<<reserved for more knowns>>>
What we don't know:
U1. Why the cat gets hot. May be too small for motor displacement. May be
running very rich at road speed and load.
U2. Why the ECU doesn't emit codes anymore. May be interrogating it wrong
(bad test connector). May be defective ECU.
U3. When exactly does the fault light turn on. Does it stay on. Does it
remain on after restart.
U4. Whether or not the ECU codes are reset yet. (did we reset them using
the re-learn mode or did we reset them using the jumper
reset method or did we not reset them yet)
U5. Whether the coolant sensor (tested to spec at the sensor by MCM) signal
is present at the ECU. (may indicate cable malfunction)
U6. Whether the O2 Sensor signals are reasonable and also present at the
ECU. (may indicate cable malfunction)
U7. Whether Janet wears pasties on both nipples (may indicate wardrobe
malfunction) included just to see if you are reading along.
U8. Whether the New O2 sensors are properly wired in manufacture
(visual/continuity comparison should detect defective mfg).
Need pin-outs and wire colors from harness on motor.
U9. Why the fuel consumption was ~5mpg after the first work was done.
pensioner (struggling manfully to achieve mediocrity)