Text Box:   Service And Maintenance Text Box: FUEL INJECTION Text Box:  

 

 

 

 

 

 

Text Box: 1. Clean fuel injectors. 2. Clean ISC/ASC motor, as required. 3. Clean throttle body air intake. 4. Visually inspect fuel lines and fuel rail. 5. Pressure test fuel pump. 6. Test and visually inspect fuel pump, pressure regulator, vacuum line and connections. 7. Decarbonize intake manifold. 8. Decarbonize intake and exhaust valves. 9. Decarbonize combustion chamber and pistons. 10. Test exhaust emission.