Fuel Injection System, Servicing

Fuel Injection System, Servicing

NOTE:
- Engine compartment fuel lines must be secured with spring clips. The use of clamp or screw-type clips is not permitted.
- The Engine Control Module (ECM) for the Fuel injection and Ignition system is equipped with a Diagnostic Trouble Code (DTC) memory. Before performing repairs, adjustments, or troubleshooting, the DTC memory must be checked and the vacuum connections checked for leakage (outside air).
- Components tagged with an asterisk (*) are checked via On Board Diagnostic.
- Components tagged with ** are checked via Output diagnostic Test Mode (DTM), Refer to Scan Tool Testing/Output Diagnostic Test Mode (DTM). Testing and Inspection
- Trouble-free electrical component operation requires 11.5 Volts (minimum).
- Do not use sealants containing silicone. Particles of silicone drawn into the engine are not consumed during combustion and could damage the Oxygen sensor, resulting in higher exhaust emission levels.
- Do not use terminal sprays or similar materials in the area of the Oxygen sensor connector. Oxygen sensors require reference air to function correctly which they receive via the cable. If terminal spray enters the sensor via the cable it can lead to possible damage or driveability complaints.
- As a result of performing certain checks, the ECM can trigger and and store a DTC. Therefore after completing all checks and repairs, the DTC memory must be checked for any possible DTC's and erased, if necessary.