I have a 1996 lexus ls 400 its giving me problems it start and will run great for a while and then…

I have a 1996 lexus ls 400 its giving me problems it start and will run great for a while and then it wont turn over until the morning. I did top it off with gas the first ti.e it happened and now im having the problem all the time

of course tune it up first and pray. But if not that, those were known for computer failures on that model . Have a pro check for that and wiring failure to the computer

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