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

Ignition modules

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Old 10-22-14, 03:50 PM
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Luiarriaza
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Default Ignition modules

Will the ignition modules from a 1994 work on a 1997?
Old 10-22-14, 06:47 PM
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YoshiMan
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I checked see what it fits, and apparently there was a part number change for the second generation LS's.

The same 95+ later LS400 ignition module matches the one used in the 92+ SC400s, so it MAY work... then again, it may not. I wouldn't mix any sort of the engine control system from a 1st or 2nd generation together, since they made so many changes to EFI system and the engine
Old 10-22-14, 07:34 PM
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Yamae
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The spark plug gap for a 94 is 0.8mm and 97 1.1mm. The ignition system is redesigned and there is no direct compatibility.
Old 10-23-14, 02:58 PM
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So from 1995 and up is compatible?!
Old 10-23-14, 05:10 PM
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Yamae
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As far as I investigate, the design change was applied to the production on August 1996.
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