90-884294
Page 3B-33
OCTOBER 2001
Air Temperature Sensor and Head Temperature Sensor Test
Purpose: This test eliminates possibilities of improper fuel delivery related to air/head temperature sensors.
NOTE: Air/Head Temperature Sensor functioning can be monitored using the Digital Diag-
nostic Terminal (DDT). The Air Temperature sensor should indicate ambient air tempera-
ture. The Head Temperature sensor should indicate cylinder head water temperature. The
ECM will revert to a default temperature of 32
°
F (0
°
C) if it should lose either air or head
temperature sensor signal. The sensors can also be tested using a DMT2000 Digital Multi-
meter 91-854009A1.
59025
a
b
b
59037
a -
Air Temperature Sensor
b -
Head Temperature Sensor
Disconnect temperature sensor harness and check continuity with digital or analog ohm-
meter test leads between both connector pins. With engine at temperature (F
°
) indicated,
ohm readings should be as indicated
±
10%. There should be no continuity between each
connector pin and ground.
1. Disconnect and remove temperature sensors from engine.
2. Connect DMT (91-854009A1) to leads of sensor.
3. Place sensor in ice water while monitoring meter reading. Use chart (below) for refer-
ence.
Results: Resistance does not change inversely with temperature change. Replace defective temperature
sensor. Resistance changes inversely with temperature change. Temperature sensor OK.
Temperature Sensor Specifications
Fahrenheit
Centigrade
OHMS
257
125
340
248
120
390
239
115
450
230
110
517
221
105
592
212
100
680
203
95
787
194
90
915
185
85
1070
176
80
1255
Содержание 225 EFI
Страница 64: ...IGNITION Page 2A 8 90 884294 OCTOBER 2001 Coil Plate Assembly...
Страница 66: ...IGNITION Page 2A 10 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Страница 68: ...IGNITION Page 2A 12 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Страница 100: ...CHARGING STARTING SYSTEM 90 884294 OCTOBER 2001 Page 2B 9 Notes...
Страница 101: ...CHARGING STARTING SYSTEM Page 2B 10 90 884294 OCTOBER 2001 Flywheel Alternator...
Страница 159: ...WIRING DIAGRAMS 90 884294 OCTOBER 2001 Page 2D 9 Notes...
Страница 220: ...FUEL PUMP 90 884294 OCTOBER 2001 Page 3A 3 Notes...
Страница 221: ...FUEL PUMP Page 3A 4 90 884294 OCTOBER 2001 Fuel Pump Assembly A...
Страница 234: ...FUEL INJECTION 90 884294 Page 3B 5 OCTOBER 2001 11 Tamper Proof Torx Screw Set 91 881828 58685 Notes...
Страница 235: ...FUEL INJECTION Page 3B 6 90 884294 OCTOBER 2001 Fuel Management System...
Страница 237: ...FUEL INJECTION Page 3B 8 90 884294 OCTOBER 2001 Fuel Management System...
Страница 239: ...FUEL INJECTION Page 3B 10 90 884294 OCTOBER 2001 Vapor Separator Components...
Страница 293: ...OIL INJECTION 90 884294 OCTOBER 2001 Page 3C 3 Notes...
Страница 294: ...OIL INJECTION Page 3C 4 90 884294 OCTOBER 2001 Oil Injection Components...
Страница 317: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 5 Notes...
Страница 326: ...POWERHEAD Page 4A 14 90 884294 OCTOBER 2001 Starboard Bleed System Routing 1 2 2 2 3 4 5 6 7 7 7 2 7...
Страница 328: ...POWERHEAD Page 4A 16 90 884294 OCTOBER 2001 Port Bleed System Routing 1 1 1 1 2 2 2 8 8 8 3 4 4 5 5 5 5 6 7 7 9 10 11 12...
Страница 385: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 73 Notes...
Страница 407: ...COOLING Page 4B 8 90 883728 JULY 2001 Notes...
Страница 701: ...COLOR DIAGRAMS Page 8 2 90 884294 OCTOBER 2001 Notes...
Страница 702: ...COLOR DIAGRAMS Page 8 3 90 884294 OCTOBER 2001 225 250 3 0 LITRE WORK EFI WIRING DIAGRAM 2002 MODEL YEAR...
Страница 710: ...C D E A B 59266 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 17 18 19 20 21 22 23 24 25 26 27 28 29 14 15 14 14 12 10...
Страница 711: ...COLOR DIAGRAMS Page 8 9 90 884294 OCTOBER 2001 TYPICAL SMARTCRAFT DUAL OUTBOARD INSTALLATION 2002 MODEL YEAR...
Страница 714: ...COLOR DIAGRAMS Page 8 11 90 884294 OCTOBER 2001 225 250 3 0 LITRE WORK EFI OIL FUEL FLOW DIAGRAM 2002 MODEL YEAR...
Страница 716: ...58847 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28...
Страница 717: ...COLOR DIAGRAMS Page 8 13 90 884294 OCTOBER 2001 225 250 3 0 LITRE WORK EFI WATER FLOW DIAGRAM 2002 MODEL YEAR...
Страница 719: ...7 7 14 59162 1 17 16 2 3 4 5 6 8 8 9 1 16 12 13 14 15 10 11 11 17 1 1...