Page 2A-20
90-884294 OCTOBER 2001
Cylinder Head Temperature Sensor
Two (2) temperature sensors are used to provide temperature information to the ECM.
One sensor is mounted in each cylinder head.
The ECM uses this information to increase injector pulse width for cold starts and to retard
timing in the event of an over-heat condition. Should a temperature sensor fail, the ECM
will default to a temperature value of 32
°
F (0
°
C).
a
b
59037
a -
Cylinder Temperature Sensor (PORT)
b -
Cylinder Temperature Sensor (STARBOARD)
Air Temperature Sensor
The air temperature sensor is mounted on top of the air plenum. The ECM regulates fuel
flow, in part, based on manifold air temperature. As air temperature increases, the ECM
decreases fuel flow. Should the air temperature sensor fail, the ECM will default to a tem-
perature value of 32
°
F (0
°
C).
59025
a
a -
Air Temperature Sensor
Summary of Contents for 225 EFI
Page 64: ...IGNITION Page 2A 8 90 884294 OCTOBER 2001 Coil Plate Assembly...
Page 66: ...IGNITION Page 2A 10 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Page 68: ...IGNITION Page 2A 12 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Page 100: ...CHARGING STARTING SYSTEM 90 884294 OCTOBER 2001 Page 2B 9 Notes...
Page 101: ...CHARGING STARTING SYSTEM Page 2B 10 90 884294 OCTOBER 2001 Flywheel Alternator...
Page 159: ...WIRING DIAGRAMS 90 884294 OCTOBER 2001 Page 2D 9 Notes...
Page 220: ...FUEL PUMP 90 884294 OCTOBER 2001 Page 3A 3 Notes...
Page 221: ...FUEL PUMP Page 3A 4 90 884294 OCTOBER 2001 Fuel Pump Assembly A...
Page 235: ...FUEL INJECTION Page 3B 6 90 884294 OCTOBER 2001 Fuel Management System...
Page 237: ...FUEL INJECTION Page 3B 8 90 884294 OCTOBER 2001 Fuel Management System...
Page 239: ...FUEL INJECTION Page 3B 10 90 884294 OCTOBER 2001 Vapor Separator Components...
Page 293: ...OIL INJECTION 90 884294 OCTOBER 2001 Page 3C 3 Notes...
Page 294: ...OIL INJECTION Page 3C 4 90 884294 OCTOBER 2001 Oil Injection Components...
Page 317: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 5 Notes...
Page 385: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 73 Notes...
Page 407: ...COOLING Page 4B 8 90 883728 JULY 2001 Notes...
Page 701: ...COLOR DIAGRAMS Page 8 2 90 884294 OCTOBER 2001 Notes...
Page 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...
Page 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...