Manifold Absolute Pressure (Map) Sensor

WARNING: This page is about a different car, the 1996 Pontiac Firefly and 1996 Geo Metro. However, it is still accessible from the selected car via links, so may be relevant.

For information on MAP sensor, see ENGINE SENSORS & SWITCHES in SYSTEM/COMPONENT TESTS article.

OXYGEN SENSOR HEATER RESISTANCE @ 68°F (20°)

Application	Ohms
Metro & Firefly (Canadian)	11.7-14.3

THROTTLE POSITION (TP) SENSOR VOLTAGE

Application

Volts

1.0L & 1.3L

⁽¹⁾ .98-1.02

⁽¹⁾

Insert a .14" (3.5 mm) feeler gauge between throttle stop screw and throttle lever. If Idle Speed Control (ISC) motor plunger contacts throttle lever screw, bring engine to normal operating temperature. Using a Tech 1 scan tool connected to DLC, ensure TP sensor voltage is .98-1.02 volts. Adjust or replace TP sensor as necessary.