Side note: It's a work in progress. Image names will probably remain the same but the page may be broken apart or reorganized in the future. Link directly at your own risk. I would prefer you use the main URL http://revbeergoggles.com/
(note: this table is for the 93 ZJ but should be applicable for
other years)
Start
up |
Warm
up |
Idle | Cruise | Accel | Hard
Decel |
Wide
Open |
Sensor | |
Battery volt | X | X | X | X | X | X | X | Integral to the Computer |
Coolant temp
ohm table Gauge |
X | X | X | X | X | X | X | ![]() |
CrankPS | X | X | X | X | X | X | Located 11 o'clock on the
transmission bell housing ![]() |
|
MAT
ohm table |
X | X | X | X | X | X | ![]() |
|
MAP | X | X | X | X | X | X | ![]() |
|
TPS | X | X | X | X | X | X | X | ![]() |
CamPS | X | X | X | X | X | ![]() |
||
AC Signal | X | X | X | X | Combination of
AC low pressure switch and AC control signal from data bus. |
|||
Neutral Sig | X | X | X | From Tranny | ||||
O2 | X | X | X | ![]() |
SENSOR | IMAGE |
|
A/C High Pressure Switch | ![]() |
Located on the compressor output side.
DO NOT REMOVE UNIT WITHOUT
|
A/C Low Pressure Switch | ![]() |
Located on the accumulator.
DO NOT REMOVE UNIT WITHOUT
The sensor is screwed into a fitting on the accumulator. This fitting has a long travel schrader valve to allow sensor removal without releasing coolant. |
Brake travel sensor | ![]() |
Located on the booster case. |
Coolant Fluid Level | ![]() |
Located on the coolant fluid overflow bottle. |
Coolant Temperature | ![]() |
Located by upper radiator hose.
Coolant/Mat resistance table
|
Crankshaft Position Sensor |
![]() |
Seems there are two types floating about out there.
The one Jeep sent me initially was not the one my ZJ uses. |
Manifold Air Pressure (MAP) | ![]() |
Located on firewall aft of intake rail.
Looking at sensor (as in picture)
|
Manifold Air Temp (MAT) | ![]() |
Located on the intake plenum second from firewall
Coolant/Mat resistance table
|
Oil Level | ![]() |
Located on the passenger side of oil pan.
No data, presumed dry/pressure contact. |
Oil Pressure | ![]() |
Located forward of the oil filter.
0 psi = 1 Ohm
|
Speed sensor | ![]() |
Located on the transfer case output shaft. |
Washer Fluid Level | ![]() |
Located on the washer fluid reservoir bottle. |
Firing Order | ![]() |
The ignition Coil
![]() |
Wire Route | ![]() |
Engine Fuse and Relay Bank | ![]() |
Detail of fuse/relay | ![]() |
![]() |
TEMPERATURE | RESISTANCE | ||
C | F | MIN | MAX |
-40
-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110 120 |
-40
-4 14 32 50 68 77 86 104 122 140 158 176 194 212 230 248 |
291,490
85,850 49,250 29,330 17,990 11,370 9,120 7,370 4,900 3,330 2,310 1,630 1,170 860 640 480 370 |
381,710
108,390 61,430 35,990 21,810 13,610 10,880 8,750 5,750 3,880 2,670 1,870 1,340 970 720 540 410 |
|
|
|
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The part they sent (not the right one) | The part I finally got (the right one) |
PN 04638128 $53.06
Sensor Connector Assembly |
PN 56027280 $72.00
Sensor Connector More detail |
copyleft 2002, DougW
link, copy, whatever...