Vacuum relative to economy?

[mic*]

If you have access to the datalogit setup for the Power FC you can replace the map sensor with anything you want and then recallibrate the curve in the computer for the new sensor.

Sounds like the way to go... I bet it runs fine after you replace it too.

[Andrew162]

Does anyone have any info on the 3S-GTE MAP sensor info like operating voltages, pressures, etc?

[oldcorollas]

which gen? are their differences? i'll check my manual tonight (4th gen? with the crappy integral ex manifold and MAP on the manifold itself)

[Andrew162]

Mine's 3rd Gen (94-99)..

[oldcorollas]

for the later model

67kpa vacuum = 1.0-1.6V
atmospheric pressure = 2.0-2.6V
69kpa boost = 3.0-3.6V
and 137kpa boost = 4.0-4.6V

so it looks like it's a standard 2.5 bar absolute pressure sensor... basically... (ie 1 bar vac, 1.5bar boost, but 1bar vac is 0V)

so you could easily check the MPX range of sensors for a 0-5V, 2.5bar, absolute pressure, ported package, sensor... and it would probably work straight away

it will need 5V, ground and signal (like original sensor) but has extra legs for something else the megasquirt site has diagram of the MPX4250 in a circuit diagram, so you can see what does what in an application...

hth,
Cya, Stewart