The LPEFI® system is a sequential multi-port fuel injection system that injects .. pressure inside a propane tank can push a loosened . goes through a purge cycle and / or Auto purge feature for 6 to 15 seconds .
3 Switch Box Connectors .. Refer to the OEM service manual and wiring diagram for more information.
Some trucks use a 6 port fuel selenoid/switch and others use a 3 port. other possible wiring diagrams, one for a dealer installed aux tank and. changes in throttle position and manifold pressure and provides extra fuel.
3. Fuel pump relay.
4. Fuel tank 5.
Accelerator control 6. Fuel lines. The throttle portion of both the TBI units may contain ports located above, the fuel pump relay does not complete the circuit, the oil pressure switch will close.
Subsystem Schematics – Detailed wiring and electrical schematic information. New LLY L and LG4 L engine information is added for diesel engines sold after & Medium Duty C Series Electrical — Revised 6/ The LPEFI® system is a sequential multi-port fuel injection system that injects .. pressure inside a propane tank can push a loosened .
goes through a purge cycle and / or Auto purge feature for 6 to 15 seconds . 3 Switch Box Connectors .. Refer to the OEM service manual and wiring diagram for more information.Electric Fuel Tank Switch # Date 10/30/07 Cut the original wire from the sending unit to the fuel gauge and connect it to the selector switch as shown in the diagram.
Connect a new 18 ga. wire from the switch to the aux.
tank sending unit. and another new wire to the selector valve.
Aug 12, · It only has one wire. Cost like $55 or less.
Simple switch out. Takes 15 minutes Edit: After you added the the first wiring diagram, you now know which electric ports you need to use.
All you need is power and ground since the sending unit switching is handled at the selector switch. Do not cap off any tank vent lines. Edited April 6, by txab.
Feb 03, · Pressurize the fuel tank to 35 kPa (5 psi). Do not use more than 55 kPa (8 psi) in order to avoid damage to the fuel tank. Check for leaks in the fuel lines between the fuel tank and the fuel transfer pump.
Repair any leaks that are found. Check the fuel pressure in order to ensure that the fuel transfer pump is operating properly.5/5.
topkick truck, and the fuel pump has stopped working. Customer Question gmc topkick with duramax. system has dual fuel tanks.
each tank has its own fuel level sender but only one guage in the dash. there is also transfer pump between rear and front wiring diagram for GMC Topkick with gas engine. vin# XXXXX no power to.
Dec 05, · Wiring a fuel tank selector valve. Discussion in 'Early CJ-5 and CJ-6 Tech' started by FinoCJ, Dec 5, Messages: 1, I am trying to learn as much about switches as I can with regard to wiring in a 6 port (both supply and return) fuel tank selector valve that will also switch the fuel gauge sending wire connections.Can anyone help with the wiring for dual tanks | PlowSiteCan anyone help with the wiring for dual tanks | PlowSite