Throttle Position (TP) Switch (Festiva)

Ensure idle speed and ignition timing are adjusted to specification. Stop engine. Disconnect negative battery cable.
CAUTION: DO NOT tamper with throttle stop screw at throttle lever. Doing so may result in damage to throttle body.
Unplug TP switch connector at throttle body. Insert appropriate feeler gauge between throttle stop screw and stop lever. Check for continuity between specified terminals on TP switch connector. See ADJUSTMENTS article in this section and THROTTLE POSITION (TP) SWITCH CONTINUITY table below.

THROTTLE POSITION (TP) SWITCH CONTINUITY

Test Condition ⁽¹⁾

Continuity Between ⁽²⁾, ⁽³⁾ IDL-TL

Continuity Between ⁽²⁾, ⁽⁴⁾ PSW-TL

.02" (.5 mm)

Yes

.03" (.7 mm)

Wide Open Throttle

Yes

⁽¹⁾	Insert specified feeler gauge between throttle adjustment screw and stop lever.

⁽²⁾	Throttle position sensor connector terminals.

⁽³⁾	Yellow/Black and Black wires on mating connector.

⁽⁴⁾	Yellow and Black wires on mating connector.

Vane Airflow (VAF) Meter

1) Check all wiring, harnesses, connectors, and components for evidence of damage, overheating, shorting, or looseness. If any defect exists, repair as necessary.

2) Inspect vane airflow meter for damage. Ensure measuring plate moves smoothly. Turn ignition off. Install BOB. Turn ignition on. Measure voltage between BOB test pins VAF and ground on Festiva, or between VAF and SIGRTN on Capri. Voltage must be as specified in VANE AIRFLOW METER VOLTAGE table.

VANE AIRFLOW METER VOLTAGE

Door Opening

⁽¹⁾ Volts Festiva

⁽¹⁾ Volts Capri

Fully Closed

⁽²⁾

.5-1.5

1/8

3.24

.59

1/4

5.60

1.19

3/8

5.62

1.78

1/2

5.83

2.38

5/8

6.02

2.97

3/4

6.57

3.56

7/8

7.48

4.16

Fully Open

7.87

4.5-5.0

⁽¹⁾	Voltage may vary by plus or minus 15 percent.

⁽²⁾	Voltage is not specified by manufacturer.