Ls1 Fuel System Diagram

Pre pump you will want to install a 100 micron fuel filter to protect the pump from debris.

Ls1 fuel system diagram. Fuel injectors air pump and iac charging system schematics. Using a 3 8 fuel hose i connected one end to the metal line with a hose clamp and the other end to a 8an hose to 8 female fitting. Once again street performance can modify your existing fuel rails or provide. If you happen to have a non return line ls1 the fuel rails must be modified for a two line system.

These computers were service number 9354896 or 12200411. This system is very difficult to adapt in an engine swap situation. Fortunately earlier 97 98 corvettes employ the traditional feed and return line fuel system. This is a discussion.

The 60508 9 harness is designed to be a complete wiring system for the fuel injection system on a 1999 02 ls1 with a t56 manual or a 4l60e automatic transmission. The 1997 1998 corvettes and 1998 2002 f body ls1s used a dual line fuel rail. Mike built a. Meaning the regulator can be put way back near the surge correct me if i m wrong.

If you are installing a later style gen iii or gen iv engine you don t have to route a fuel line back to the tank. Ls1 fuel schematic. Fuel rail every time a injector opens and closes no 3 the line you see with the 1 lb rating is for the emission purge system this system collects fuel vapors and stores them in a charcoal canister then while you drive the purge valve opens delivering the vapors to be burnt in ther engine through. Factory computers from 1999 02 camaros or firebirds equipped with the ls1 may be used with this harness.

I d like to run a return less system similar to the ls1 standard setup if it can be done easily. The early gen iii engines from 1997 to 1998 and some 1999 engines used a return fuel line system while the 1999 and newer ls engines used a returnless fuel system. Figure i don t need one as the vs v6 intank one can move fuel up to the fuel rail which i m sure is higher than the surge tank is going to be. Ignition module bank 1 1 3 5 7 bcm and fuel pump starting system schematics ignition module bank 2 2 4 6 8 battery and ignition switch ect engine oil level cruise module.

Make sure the fuel hose you use between the pump and the engine is rated for at least 60 psi or 4 2 bar or higher it will be more expensive but regular fuel line is sometimes only rated for 25 psi. In 1999 the corvette ls1 went to a single line rail using a filter regulator near the fuel tank and running a short return line back to the tank.