13. FUEL INJECTION SYSTEM Downtown 300i ABS Groove INSTALLATION Apply the engine oil to a new O-ring. Install the fuel injector into the fuel pipe. Ensure the tab of the fuel injector inserted into the groove of the fuel pipe. Tab Install the fuel pipe into the intake manifold by aligning the dowel pin. Be careful not to damage the O-ring. Tighten the fuel pipe mounting bolt. FUEL INJECTOR CLEANING PROBLEM O-ring Dowel Pin 1. Fuel Injector cannot output the fuel. 2. The Injector injection time (ms) is shorter Battery or longer. Standard: < 1.6ms Fuel ANALYSIS Injector block (With some carbons). TROUBLESHOOTING 1. Use the specified injector cleaner. 2. Pouring the liquid of carburetor cleaner until half container. 3. Connect the battery as picture. 4. The injector cleaner with the flash relay. Container 5. Keeping the fuel Injector operation. 6. Waiting for 20~30 minutes. 7. Cleaning the carbons completely. Flash Relay 13-21