SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1993PICKUP F250, 2D PICKUP, 5.0 N, STANDARD, M5OD-R2REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESENSOR RANGE CHARTSENGINE CONTROLS - SENSOR OPERATING RANGE CHARTSINTRODUCTIONMANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE (MAP/BARO)
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2

Manifold Absolute Pressure/Barometric Pressure (Map/BARO)

1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2SECTION Manifold Absolute Pressure/Barometric Pressure (Map/BARO)

SENSOR

MAP/BARO FREQUENCY (BAROMETRIC PRESSURE)

Barometric Pressure (In. Hg) (1) Frequency (Hz)
17.1 122.4
18.3 125.5
19.5 128.7
20.7 131.9
21.8 135.1
23.0 138.3
24.2 141.8
25.4 145.4
26.6 148.9
27.7 152.5
28.9 156.1
30.1 159.6
31.0 162.4
(1) Values may differ by as much as 6 Hz.
MAP/BARO FREQUENCY (MANIFOLD VACUUM) (1)

Manifold Vacuum (In. Hg) (2) Frequency (Hz)
0 159
3 150
6 141
9 133
12 125
15 117
18 109
21 102
24 95
27 88
30 80
(1) Based on barometric pressure of 30.0 in. Hg.
(2) Values may differ by as much as 6 Hz.
MAP/BARO VOLTAGE (ELEVATION)

Elevation (Feet) Volts
0 1.59
1000 1.56
2000 1.53
3000 1.50
4000 1.47
5000 1.44
6000 1.41
7000 1.39
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.