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'91 LS400 Engine will not start, or shuts down in a few seconds.


Bob St

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Mechanic suspected Low oil Sensor, no longer available. 聽By-passed the sensor but still no luck. 聽Any other workarounds out there?

Beautiful car, mechanically sound until this issue. 聽馃ゲ

Lexus.HEIC

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It could be the ECU but I don't think it'd be wise to guess. Perhaps a Lexus mechanic would be better equipped to troubleshoot the issue.

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Thanks RX400h. 聽The Lexus mechanic believes the same thing but warns a new ECU would need to be recoded to my car, which he does not have the ability to do. 聽Also, he advises that if the ECU approach does not fix the issue, then we would be throwing expensive parts at the problem, hoping that the first few might fix the issue.

So, hoping that maybe others on this forum might have seen something similar and have a different approach.

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