DTC 45

Code 44 indicates a lean oxygen sensor signal.
Code 45 indicates a rich oxygen sensor signal.

DIAGNOSTIC CHART

Part 1

Codes 44 & 45 Diagnostic Chart (Part 1):

Part 2

Codes 44 & 45 Diagnostic Chart (Part 2):

FUEL METERING LEAN

Fuel Metering Lean:

FUEL METERING RICH

Fuel Metering Rich: