Test H: Fuel Control

NOTE
This pinpoint test is intended to diagnose:
- HO2S/Heater
- HO2S connections
- Vacuum systems
- Fuel injector(s)
- Harness circuits: HO2SH, HO2S, INJ 1-6, and VPWR
- Powertrain Control Module (PCM)

CAUTION: Probing or piercing wiring insulation is not permitted and may allow water entry, causing corrosion and shorting which may result in HO2S failure.

Pinpoint Test Fuel Injector Schematic And Connectors:

Pinpoint Test HO2S Schematic and Connector:

PCM Circuit Data Sheet:

HO2S Voltage Chart:

Symptom/DTC Chart:

H1 And H11- H13:

H14 - H15 And H20 And H22:

H23 - H26 And H40:

H41 - H43:

H44 - H46: