|
I reinstalled my EC2 yesterday after a
few changes by Tracy. I immediately discovered a new problem. The lowest MAP
address being used was 62 and both primary and secondary injectors fired at all
MP and RPM. With Tracy on the phone and Dennis H supervising my efforts we found
a small vacuum leak at the Aeromotive A1000-6 fuel pressure regulator. After
switching the two MP tubes between A&B controllers the A controller starter
working as expected. The EC2 staged properly with lower MAP addresses being
accessed. When reinstalling the EC2 I had switch the MP tubes from my usual
configuration. A couple of weeks ago I had noticed my B controller was not
working as expected. I had to continually adjust the mixture to keep the engine
running. Now I know why. What was unexpected is one MP tube is used for the
fuel pressure regulator, B Controller and my Advanced EFIS engine monitor. The
Advanced engine monitor was not affected by the slight leak. On the other hand
the EM3 did see the leak and was showing static pressure regardless of
MP. Here is a note from the Aeromotive web site.
NOTE: Testing
the enclosed regulator by applying air pressure or vacuum to the vacuum port
with a
hand-held pump will yield poor results,
due to the slight air leakage through the adjustment screw
threads. This minute leakage, which is
typical of all adjustable fuel pressure regulators, does not, in any
way, affect the performance of the
regulator.
Bobby
Hughes
|