Missing in action - still - more results
robert at s-cars.org
Sat Oct 2 14:56:57 EDT 2004
OK. More data. I pulled the fuel rail and observed the output while the
better half cranked the starter. Injector #4 looks and behaves essentially
the same as the other injectors. Decent volume of spray - estimated not
measured but similar to other injectors. Spray pattern may be just a bit
suspect but it is basically cone shaped but perhaps a bit blotchy. The
engine should run like this. The spray pattern is basically the same as
the other injectors.
I also pulled #4 plug and inspected it. Looks fine except that it has been
wet with fuel (I wonder why?). I swapped it with the plug in #2. In the
midst of this I also checked to see if coil #4 was putting out anything
from its secondary. I observed a nice strong spark at #4 with my
adjustable gap spark tester. #4 coil just about HAS to be OK. 1. It is
brand new. 2. The circuit through its primary winding is intact. 3. It
is producing a strong voltage at its secondary winding.
After swapping the two plugs and replacing everything and firing it
up. There was still a miss and it is still in #4. Therefore the plug was
not the cause of the miss.
OK, where are we? We have spark. We have fuel. Compression? I'll check.
Pull plugs. Disconnect injector leads. Measure compression ten
revolutions each position.
#1 168 psi
#2 160 psi
#3 158 psi
#4 160 psi
#5 148 psi
Compression is pretty decent for a 208+K mile engine.
I put everything back together and the miss is still there. Need I say I'm
Random Bushism: "Gov. Bush will not stand for the subsidation of failure."
George W Bush, Florence, S.C., Jan. 11, 2000
Robert Myers 304-574-2372
urS6 - Cashmere Grey
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