I think my maps sensor if giving the wrong reading because I get fuel cut at about .6 bar
Dose any one know what voltage to pressure ratio I should be getting
I.e. .5 bar = 3 volts or 1 bar = 5 volts if you get what I mean
I have had to make my own fuel cut defender to stop this but it’s only effective up .9 bar
Thanks

 

What year car?

 

sorry 94 djm wrx

 

If you can read the bad formatting, here are the Pre96 values :

kPa mmHg PSI Bar mv
-26.7 -200 -3.87 -0.267 2100
-21.36 -160 -3.096 -0.2136 2200
-16.02 -120 -2.322 -0.1602 2300
-10.68 -80 -1.548 -0.1068 2400
-5.34 -40 -0.774 -0.0534 2500
0 0 0 0 2600
5.34 40 0.774 0.0534 2700
10.68 80 1.548 0.1068 2800
16.02 120 2.322 0.1602 2900
21.36 160 3.096 0.2136 3000
26.7 200 3.87 0.267 3100
32.04 240 4.644 0.3204 3200
37.38 280 5.418 0.3738 3300
42.72 320 6.192 0.4272 3400
48.06 360 6.966 0.4806 3500
53.4 400 7.74 0.534 3600
58.74 440 8.514 0.5874 3700
64.08 480 9.288 0.6408 3800
69.42 520 10.062 0.6942 3900
74.76 560 10.836 0.7476 4000
80.1 600 11.61 0.801 4100
85.44 640 12.384 0.8544 4200
90.78 680 13.158 0.9078 4300
96.12 720 13.932 0.9612 4400
101.46 760 14.706 1.0146 4500
106.8 800 15.48 1.068 4600
112.14 840 16.254 1.1214 4700
117.48 880 17.028 1.1748 4800
122.82 920 17.802 1.2282 4900
128.16 960 18.576 1.2816 5000

 

Sorry Scott I don’t understand
I was hoping to put my multi meter across the terminals on the ecu and read the voltage while using a large syringe to create the pressure and see if the voltage matched up if this is possible that is

 

iv found this https://www.scoobynet.com/drivetrain...-defender.html

 

yep, just look at the last 2 columns. they show the readings