Specifications

Electrical system

chap. 6

6-14

Release 00 2002-09

Atlantic 500

CHECKING THE FUEL INJECTOR

With the engine off:

• Disconnect the two-way connector (black) (1) and

carry out the relevant measurements (on the

injector-side terminals).

• Use a tester (scale x 100 Ω) to measure the

resistance between the fuel injector-side termi-

nals.

Standard value: 14.5 ± 10%

ΩΩ

Ω at 45°F (25°C)

If resistance is infinite (∞) or lower than the pre-

scribed value, the injector (2) must be replaced.

CHECKING THE CONDITION OF THE COOLANT

THERMISTOR

• Remove the thermistor (1), see (REMOVING THE

COOLANT THERMISTOR).

• Connect a tester (2) (set as an ohmmeter) to the

thermistor (1), as shown in the figure.

• Immerse the thermistor (1) in a container (3) filled

with coolant.

• Immerse a thermometer (4) with a range of 32-

302°F (0-150°C) in the same container.

• Place the container on a burner (5) and heat the

coolant slowly.

• Check the temperature shown by the thermometer

(4) and the value of the thermistor (1), as shown

on the tester.

Make sure that the value varies according to tempera-

ture, as indicated.

NOTE If, as the temperature changes, the standard

values do not change or are greatly different from the

values shown in the table, replace the thermistor (1).

• Repeat these operations for the other thermistor.

Temperature

°F (°C)

A1 - A2 (Ω)

B1 - B2 (Ω)

140 (60) 557 ±10% 576 ±10%

194 (90) 196 ±10% 231 ±10%

248 (120) 80.6 ±10% 105 ±10%