I had hypothesized that Rusty had used the OAT bias supply on P2-21 for the
other sensor +5 (do not do this). The OAT sensor red lead
should go to one of the +5 volt pins and should be an OK source for the other
air temp sensor. This should not have changed the OAT reading. Don't
know why it did.
----- Original Message -----
Sent: Monday, August 30, 2004 2:06
PM
Subject: [FlyRotary] Re: EM2 - liquid emp
2 hookup
The diagram you posted is correct; but, just discussed with
Tracy and understood that you should NOT use the voltage source (red lead)
from the OAT sender. I am going to pick up the +5v from Aux air 1 – he
said that should be fine.
Did he say why you
shouldn't use the OAT 5V line? At the time, I'm pretty sure he said it
was OK. If there's any chance this causes the OAT to be off, I'll be
happy to change it, since it's relatively easy to do.
I will be doing the repair on the redrive myself –
report later.
Great. Glad to
hear you don't have to ship it back.
BTW; further to the pulse filtering on the MAP, I realized that
on the dyno we had teed into the line between the port and the EC2 for the
line to the dyno MAP readout – which has an accumulator can in the line.
Which apparently explains we were able to get pretty good slow speed running;
once we got it leaned out enough.
More interesting data.
I'm planning to try Mike's suggestion as soon as I pick up a cheap
filter.
Cheers,
Rusty