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Old 01-14-2019, 05:53 PM #1
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Leaky Capacitors?
Has anyone experienced the effect of leaky capacitors on their ECU?
My son's motor swap ran great for the first 200 miles and has been hesitating and stuttering and backfiring especially when you stomp on it.
1993 stick 1UZFE swap.
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Old 01-14-2019, 07:03 PM #2
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No first hand experience here but crack the ECU open and have a look.

All my crazy Lexus issues SOLVED!! (ECU-leaking capacitor) - ClubLexus - Lexus Forum Discussion
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Old 01-14-2019, 09:46 PM #3
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@1UZrunner Don any ideas?
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Old 01-15-2019, 05:48 PM #4
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He sent the ECU out for a rebuild to a place that specializes in Lexus. Hopefully they use the correct capacitors. He does have a back up ECU that probably has leaking capacitors as well that could be rebuilt.
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Old 01-20-2019, 02:05 PM #5
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Changing caps should be no big jobs... soldering iron and some flux
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