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Brent,
While we're on that, I had a situation with a grt
eis 6000 (similar to the eau that Chelton sells or used to).
One day my MAP started indicating zero concurrently
with erratic indications on several of the egt's. On investigating I
found that squeezing or moving the wire harness from the probes to the eis
caused different erratic indications. Tearing apart the wire harness
revealed several spade connectors that weren't connecting
anymore. It's also possible that some were shorting to ground
via the shielding on adjacent probes.
The unexpected (for me) finding was that fixing the
egt connections is what made the MAP work again. I would guess there
is a way to build a more robust interface to the probes such that badness on one
input doesn't cause badness on another. Is there any way I can provide
better isolation outside the box?
Colyn
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