Run-In – Turn on the ignition and check for fuel leaks before starting the motor. Install the fuel supply and return lines. Install the fuel rail and injectors back into the head and connect the electrical connections. Injectors Assembly – Install the injectors back into the fuel rail. Send the injectors to your local shop or AccelRaceTek to have them cleaned and calibrated. Send off The Injectors – Bag and pack them for shipping. After removing the fuel rail, remove the injectors from the rail. Disconnect the connectors leading to the injectors and then remove the fuel rail. Pull the Injectors – Disconnect the fuel lines from the fuel rail and cap the lines with blank caps.

If one injector has significantly less flow that the others, a lean mixture, pre-ignition can result and that can lead to a damaged engine. It is important to have all the fuel injectors matched to be sure that all the cylinders are running at peak power. The engines computer adjusts the fuel mixture based on all of the cylinders and if some are running rich then others are running lean. When one or multiple injectors do not deliver as much fuel as the others all cylinders will not have the optimum stoichiometric mixture. If the fuel injectors do not inject the same amount of fuel into each cylinder the engine will not deliver maximum horsepower or in extreme cases the engine can be damaged. The off season is a great time to check the fuel injectors in the SpecRacer or on any car.

Fix extreme injector not opening