Test H: Fuel Control

NOTE
This Pinpoint Test is intended to diagnose the following:
- Heated Oxygen sensor (HO2S)/Heater
- HO2S Connections
- Vacuum Systems
- Fuel Injector(s)
- Harness Circuits: HO2S GND, HO2S, INJ 1-8, VPWR and SIG RTN
- Powertrain Control Module (PCM)

Pinpoint Test Connectors

Contour/Mystique/Cougar (HO2S):

All Others (HO2S):

Use the large index tab as your reference during diagnostic analysis. Some connectors may not have the small index tabs.

NOTE: Location of the small index tabs may differ from illustration.

PCM Connector Pin Numbers

PCM Connector Pin Numbers:

Injector Vehicle Harness Connector

Injector Vehicle Harness Connector:

Injector PCM Connector Pin Numbers

Injector PCM Connector Pin Numbers:

HO2S Location






Pinpoint Tests