LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Air compressors not coming on

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Old 06-11-12, 03:21 PM
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koukisilvi
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Default Air compressors not coming on

Hey guys, so I just installed a ksport air suspension in my 96 LS400, and wired everything up, and for some the reasons the compressors wont turn on to fill the tank. I can get them to turn on with direct power, but when I plug everything into the relays, they wont turn on. I think the pressure switch may be bad, but not sure how to test it/bypass it. I just ran the pressure switch wire from relay to the other to bypass, and still nothing. Any ideas on what it could be? I ordered another pressure switch, but for some reason I dont think that is the problem.
Old 06-12-12, 12:47 AM
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PureDrifter
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sounds like something you should run by KSport.
Old 06-12-12, 10:21 AM
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timmy0tool
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if it's not the pressure switch, it could be your relay. can you send us how you wired it? is there a ksport harness you plugged in? check your grounds.
Old 06-13-12, 11:18 PM
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skperformance
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have you tried a hot wire to the relay to trigger it?
Do you have a managment system or just a pressure switch ?
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