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

96 LS 400 stops when warm, great when cool

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Old 04-29-18, 10:02 AM
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chartmojo
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Default 96 LS 400 stops when warm, great when cool

I've seen much discussion but here is the question. I have a 96 w 120k on it....runs fantastic when cold to cool. Has new alternator/battery. (thx for nothing mechanics) Warmed up yesterday. After parking it for a half hour it did its poltergeist thing it did last summer...starts goes..then cuts out ..all elect goes crazy everything starts shutting down drive about a mile and park as it dies. Go back later when cooler temps runs perfect. ECU or fuel pump? Which would you replace first.. Should I do the fuel fllter if I do the fuel pump? Anyone know of the best place to send the ecu to have it checked and fixed? T.i.a. It did get a new timing belt at about 105k..some say in that can cause weird wire chaffing or something.
Old 04-29-18, 11:29 AM
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RA40
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Welcome to Club Lexus.

Error codes? Tanin Auto Electronix can repair the ECU, check their website here:
http://www.taninautoelectronix.com/
Old 04-30-18, 08:03 AM
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chartmojo
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Originally Posted by RA40
Welcome to Club Lexus.

Error codes? Tanin Auto Electronix can repair the ECU, check their website here:
http://www.taninautoelectronix.com/
thanks! Will be taking in thursday to get try to get some error codes.
Dang they only work on SC 300 and sc400 now

Last edited by chartmojo; 04-30-18 at 08:08 AM. Reason: change
Old 04-30-18, 09:22 AM
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RA40
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Wasn't aware of that, I'd call them anyway.

This is another:
https://www.driftmotion.com/1UZ-ECU-...e-p/dm1676.htm
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