Fuel pressure issues
jesper moreau
jesper5ktqm.audi at gmail.com
Thu Jan 6 14:03:07 EST 2005
Haudi again, I finally just received my Bosch Cis test kit. Just to
reacquaint you all, I cannot start my car after having spent the
entire spring summer and fall rebuilding my '88 5KTQ. I have found I
am not creating enough fuel pressure to push fuel through the
injectors. I do have spark. No injector-side air leaks.
So, I was excited and went out today in the cold drizzle to at least
check one fuel pressure test point. Maybe out of order, but I went
for the banjo connection at the fuel filter. (new filter and
accumulator and accum. attachment lines mind you) so I figured if my
fuel pump is any good at all I should get a good reading.
So, I connected the gauge in-line at the engine side of the fuel
filter, pulled the fuel pump relay, turned the turned the keys to
"on", verified a perfect 12V at the battery, ran a jumper from it to
socket 52 on the relay panel... the fuel pump kicked in, and in about
15-20 seconds it leveled off at a reading of about 36-37 psi
at that point I figured alas, my fuel pump is the culprit. would
anyone agree, or did I do anything wrong? I know it takes somewhere
around 60-62 psi to spray an injector. I also know the system should
register around 78-80 psi.
any feed back is much appreciated
thanks again!
--
Jesper Moreau
'88 5KTQ rocket
'86 5KTQ stocket
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