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Message
Hi John,
Assuming that the Ec2 is OK (for the moment), the one
thing I can think of that might prevent you from getting spark or injection is
lack of a signal from your crankangle sensor. I Don't have an EM2 so
don't know what effect a problem with the Ec2 would have on the EM2.
However, I am (almost) certain you should not need the EM2 (I don't have one) to
run the engine.
So assuming the Ec2 is OK and you have power to it, then
the next most important thing is to get a crankangle sensor signal.
So do a continuity check on the crank angle sensor.
Since the crank angle sensor is only a coil of wire(two actually - which the
metal spokes turn past), that should be fairly easy to do. You have
two wire coils in the crankangle sensor and I don't have a diagram I can find at
the moment - but from memory I believe you have four wires coming from the
crankangle sensor. I just don't know whether the two coils are
interconnected or standalone. I will try to see if I can't find a
diagram.
But, for the moment, I would lean toward lack of
crankangle sensor signal.
Ed A
----- Original Message -----
Sent: Sunday, May 15, 2005 8:57 PM
Subject: [FlyRotary] EC2- What am I
missing?
EC2 users,
I'm finally done with the rewiring.
I've replaced all 18 wires from the
EC2 to the PCM and the EM2 with shielded 22g and checked e ach one three times for continuity. I still get "nop" from
the EM2 (i.e. no communication with EC2). There seems to be no spark or fuel
while cranking which leads me to think that the EC2 is not triggering the
coils or the injectors on either computer. There's 12v on both the EC2 power
pins, and a good ground on the ground pin. The cold start / injector disable grounds the cold
start pin correctly. The coil disable functions ground the pins correctly.
I'm running out of things to check,
other than check the same things again. I hate to say it, but I'm
beginning to think that the EC2 is dead - but then it was checked as
good by Tracy before he shipped it. I did hook it up when it arrived, and ran
the engine briefly on the B computer. I've no reason to think this hookup to
the old wiring fried the computer since my old computer checked out good when
returned. Yet another check of the wiring tomorrow, then I'm totally stumped.
 Could I be missing something
obvious?
John (how do you spell
frustrated?)
PS - No jokes Rusty - I'm just not in the mood
:)
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