 L-Jet engine run stand, What do I need to just get it to run? |
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| PDXMike |
 Jan 8 2021, 08:21 PM
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Slowly Learning  Group: Members Posts: 111 Joined: 20-December 10 From: Portland, OR Member No.: 12,501 Region Association: Pacific Northwest  |
I have a 75 1.8 with L-Jet. I have the motor out to replace some seals, and I'd really like to run it to check for leaks before I reinstall. What all do I need to have hooked up to get it to run out of the car?
I was planning to run a remote start switch, so just getting it to turn over shouldn't be a problem. I plan to have: 1) The air intake and air flow meter connected 2) all the temp and pressure sensors, AAR, etc. 3) All the vacuum lines 4) fuel injector resistor pack 5) L-Jet brain box Do I need the dual relay if I just hotwire the fuel pump? Where/how does the L-jet brain get the signal from the ignition switch? Do I need anything from the relay board? |
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| JeffBowlsby |
Jan 8 2021, 08:26 PM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Battery
FI harness IGN harness Dual relay Fuel pump/filter/ regulator Fuel/tank HE’s |
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| PDXMike |
Jan 8 2021, 08:54 PM
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#3
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Slowly Learning Group: Members Posts: 111 Joined: 20-December 10 From: Portland, OR Member No.: 12,501 Region Association: Pacific Northwest |
I have the IGN harness, but do I need the relay board? And if I have the relay board, what inputs from the chassis harness do I need connect/switch?
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| ClayPerrine |
Jan 9 2021, 07:43 AM
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#4
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Life's been good to me so far..... Group: Admin Posts: 15,474 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(PDXMike @ Jan 8 2021, 08:54 PM)  I have the IGN harness, but do I need the relay board? And if I have the relay board, what inputs from the chassis harness do I need connect/switch? In an stock L-Jet system, the relay board is not used for the fuel system. Clay |
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