MK1 MAP sensor

[Limeymk1]

As on the Pink pages I've had a play with my MAP sensor and got the following equation out of a graph from the readings I took:

y=30.349x + 511.49 (y=mV, x=kPa)

Gives the following calculated voltage readings at between 0 and 105 kPa

kPa_________mV
0___________511.5
1___________541.8
5___________663.2
10__________815.0
15__________966.7
20__________1118.5
25__________1270.2
30__________1422.0
35__________1573.7
40__________1725.5
45__________1877.2
50__________2028.9
55__________2180.7
60__________2332.4
65__________2484.2
70__________2635.9
75__________2787.7
80__________2939.4
85__________3091.2
90__________3242.9
95__________3394.6
100_________3546.4
105_________3698.1


Readings were taken between 0 and 50 inches of water vacuum as follows:

In H2O__kPa______mV
0______101.8____3614
1______100.8____3589
5______96.8_____3560
8______93.8_____3540
11_____90.8_____3516
13_____88.8_____3501
15_____86.8_____3486
21_____80.8_____3442
25_____76.8_____3413
28_____73.8_____3388
31_____70.8_____3365
33_____68.8_____3350
35_____66.8_____3335
41_____60.8_____3291
42_____59.8_____3286
45_____56.8_____3262
49_____52.8_____3233

It gives a nice linear graph, which I'm assuming continues down to lower pressures but let me know if anyone knows different. :thumbsup: