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

LS400 1996 error P0306 & white smoke

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Old 05-30-12, 10:09 AM
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vnskippy
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Default LS400 1996 error P0306 & white smoke

My LS400 has an error P0306 & a lot of white smoke from exhaust.
Replaced: Sparklugs, wire set, 1 ignition coils, distributor & cap.
Swaped: Ingnition coils.
Still got an error P0306 and white smoke.
Please help.
Old 05-30-12, 10:37 AM
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vnskippy
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UPDATED: Car only 95,600 miles on it.
Old 05-30-12, 01:39 PM
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PureDrifter
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did you check the no.6 cylinder for compression and the fuel injector to make sure it wasnt stuck open/closed?
Old 06-03-12, 08:36 PM
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vnskippy
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Thank you for your replied.
Just have a friend checked the no.6 cylinder for compression & fuel injector is good nor stuck.
Re-seated all the sparklug wire, rotor. The car still having a lot of smoke, and smell unburned gasoline.
any idea?
Old 06-03-12, 08:50 PM
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check all cylinders for spark & fuel...
Old 01-16-13, 02:00 PM
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bjackds
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i am having the same exact problem and have been chasing it for two days. standing by waving a white flag flag for help. i am trying to convince my self that it is not a valve problem.
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