Sensor Operating Range Charts: Notes

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.

AIRFLOW METER VOLTAGE

Application

⁽¹⁾ Volts

Justy

⁽²⁾

Legacy

ECU Pin No. 8 & Ground ⁽³⁾

Engine Off

0-13

At Idle

13-14

ECU Pin No. 9 & Ground ⁽³⁾

Engine Off

0-.3

At Idle

.8-1.2

ECU Pin No. 10 & Ground ⁽³⁾

Engine Off

Zero

At Idle

Zero

Loyale PFI ⁽⁴⁾

1.0-2.0

Loyale TBI: White & Black Wire Terminals ⁽³⁾

0.1-0.5

XT & XT6: White & Black/Red Wire Terminals ⁽³⁾

1.0-2.0

⁽¹⁾	Voltage should be higher when blowing air through inlet side of airflow meter.

⁽²⁾	Justy does not have airflow meter.

⁽³⁾	Connect voltmeter between these 2 terminals of airflow meter connector.

⁽⁴⁾	Connect voltmeter between Black/Red wire terminal and sealed wire terminal next to unused terminal.

AIRFLOW SENSOR RESISTANCE (LEGACY) ⁽¹⁾

Terminal

Specification

Red Wire & Ground

One Megohm (Min.)

White Wire & Ground

One Megohm (Min.)

Black Wire & Ground

One Megohm (Min.)

Black/Red Wire & Ground

Zero Ohm

⁽¹⁾	Measure resistance between indicated terminal of airflow sensor connector and ground.

AIR TEMP SENSOR RESISTANCE (JUSTY CARB.)⁽¹⁾

Temperature

Ohms

68°F (20°C)

2000-3000

176°F (80°C)

270-370

⁽¹⁾	Measure resistance between air temperature sensor connector terminals.