System Check - Fuel System

Fuel System Diagnosis (Fuel System Check):

Fuel System Diagnosis (Fuel System Check) C:

Engine Controls (Fuel Injectors):

Circuit Description

The Fuel System Check provides a quick analysis of the fuel system. This chart then identifies more detailed diagnosis required based on the symptoms present.

The Fuel Leak/Odor Check provides a means of identifying a fuel system component that is causing a leak. This also provides information on how to diagnosis a fuel odor condition.


Diagnostic Aids

^ Nylon fuel lines are not repairable and must be replaced.

^ Evaporative Emission Control (EVAP) system problems may cause a fuel odor condition.

^ Rich engine operation may also cause a fuel odor condition.


Test Description

Number(s) below refer to the step number(s) on the Diagnostic Table.

5. The vehicle should be operated the same conditions as when the leak/odor occurs.