Circuit Description
WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.
Powertrain Control Module (PCM) uses fuel level input from instrument panel cluster to calculate expected vapor pressures within fuel system. Vapor pressure varies as fuel level changes.
Condition for setting this DTC is:
- Fuel level has not changed greater than 1.6 percent (4 counts) in 120 miles.