Ecu 882= Baro + Map
My EMS, ECU-882C-x, has the MAP AND BAROmetric sensors (two seperate) mounted onto the circuit board.
"BOTH 100% FULL TIME"
The "quest" from the coast to Lake Tahoe (9000') is quite common for, boats, buggies, and cars.
What was found:
The fuel pressure regulator's "baro" reference point determined the correction slope direction.
When the regulator was referenced to manifold pressure,
the slope direction would allow for LESS of the "fuel multiplier" object.
When the regulator was referenced to atmosphere (air),
the slope direction would allow for MORE of the "fuel multipier" object.
Lance
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