I'm reasonably confident that most of this table is correct, however I wouldn't be surprised if some isn't. Given that I don't own a DSM any more, and haven't for a few years, I can't really verify anything on it. If there are updates submitted, I'd be happy to make corrections. jerickso --[a]-- evilsoft _ org
Sensor
Address
Data Min
Data Max
Function
Sample
Accel Enrichment
0x1D
0x01 == 0%
0xFF == 100%
y = 100(x/255)
==
%
Coolant Temp
0x07
0x01 == 307deg F
0xFF == -62deg F
y = -1.45x + 308
==
deg F
Engine Speed
0x21
0x01 == 31
0xFF == 7969
y = 31.25x
==
rpm
Fuel Trim High
0x0E
0x01 == 1%
0xFF == 199%
y = .78x
==
%
Fuel Trim Low
0x0C
0x01 == 1%
0xFF == 199%
y = .78x
==
%
Fuel Trim Middle
0x0D
0x01 == 1%
0xFF == 199%
y = .78x
==
%
Injector Pulse Width
0x29
0x01 == .256ms
0xFF == 65.3ms
y = .256x
==
ms
Oxygen Feedback Trim
0x0F
0x01 == 1%
0xFF == 199%
y = .78x
==
%
Oxygen Sensor
0x13
0x01 == .02v
0xFF == 4.98v
y = .0195x
==
v
Throttle Position
0x17
0x01 == 0%
0xFF == 100%
y = 100(x/255)
==
%
Air Flow Hz
0x1A
0x01 == 6Hz
0xFF == 1606Hz
y = 6.29x
==
Hz
Air Temperature
0x3A
0x01 == 356deg F
0xFF == -74deg F
y = -1.69x + 358
==
deg F
Air Volume
0x2C
0x01 == 1
0xFF == 255
y = x
==
Barometer
0x15
0x01 == 0bar
0xFF == 1.24bar
y = .00486x
==
bar
ISC Steps
0x16
0x01 == 1
0xFF == 255
y = x
==
Knock Sum
0x26
0x01 == 1
0xFF == 255
y = x
==
Timing Advance
0x06
0x01 == -9 deg
0xFF == 245 deg
y = x - 10
==
deg
Battery
0x14
0x01 == 0.1v
0xFF == 18.7v
y = .0733x
==
v
EGR Temperature
0x12
0x01 == 595deg F
0xFF == -94deg F
y = -2.7x + 597.7
==
deg F
TDC
0x02
0x04 (inverted)
Switch Value:
Power Steering
0x02
0x08 (inverted)
AC Switch
0x02
0x10 (inverted)
Park/Neutral
0x02
0x20 (inverted)
Idle Switch
0x02
0x80 (inverted)
AC Clutch
0x00
0x20 (inverted)
Engine Codes
0x18
1.8 MPI California
0x19
1.8 MPI Federal
0x20
2.0 DOHC Federal
0x21
2.0 DOHC California
0x22
2.0 Turbo Federal
0x23
2.0 Turbo California
0x4E
3.0 DOHC California
0x4F
3.0 DOHC Federal
0x50
3.0 Turbo California
0x51
3.0 Turbo Federal
0xC8
2.0 DOHC
0xC9
2.0 Turbo
ECU Version
0x36
1990 Federal
0x37
1990 California
0xA3
1993
0xB5
1991 - 1992
0xCB
1991 - 1992 VR4
0x54
TMO Modified