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

What year was the first change on the ECU

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Old 06-19-19, 05:51 AM
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Squizzy
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Default What year was the first change on the ECU

Hi All

Just needing to know what year these engines had there first change ECU wise??.
I’m looking at a VP16 volo chip to hopefully run with a HHO setup and there saying that my engine Must be a 96 model or later as mine’s a 89 model but I didn’t think there were any changes till around the 2000 model or VVT models??.
If anyone can help me with this that’d be greatly appreciated.
Cheers

Old 06-19-19, 08:12 AM
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Yamae
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Are you looking for this? There are many changes.
https://www.clublexus.com/forums/ls-...ml#post8762081
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Old 06-20-19, 06:26 AM
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Stereorob
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90-94 obd-1 system

95 obd-1/12 but can read like 2

96-00 obd-2 system

*some early build 95s are still obd-1
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