For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Reference Information
Special Tools
EN-28428-E High-Intensity Black Light Kit
For equivalent regional tools, refer to LINK.
System Testing
- Clean all of the fuel system lines using brake cleaning solvent, and let dry. For example, the fuel injection pump, the fuel injectors and rail, and supply lines.
- Add 250 gr of oil dye to the fuel tank.
- Start and idle the engine for 3-5 minutes.
- Inspect for fuel leaks around the fuel injection pump, fuel rails, and fuel supply lines with a EN-28428-E High-Intensity Black Light Kit . A fuel leak should not exist.
Note: A fuel leak may be caused by a restricted fuel return line.
| ⇒ | If a fuel leak is located, tighten or replace any leaking lines or components. |
