SC- 1st Gen (1992-2000)

92 sc300 bad ecu?

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Old 09-12-16, 06:05 PM
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mmac0405
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Default 92 sc300 bad ecu?

I bought a 92 sc300 auto 2 weeks ago had about 35 min drive home, it was bucking a little bit also transmission was shifting weird almost like hesitating but got the car home. So today I pull the car out of the garage to continue gutting the interior and notice the tach and speedo are not working now. I did some searching and it seems like it possible the ecu is going bad or its a bad ground, any input? NO cel is on.
Old 09-12-16, 06:23 PM
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mmac0405
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After more searching I am going to pull the ecu and send to tanin
Old 09-12-16, 07:11 PM
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Teal Sc400
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Open the ECU up before sending out and look for any leaking capacitors. My opened ECU (below pic) due to codes, for the Trac/abs. I had the brake fluid flushed which seemed to solve my problems luckily. Forgot to mention even with no leaking capacitors they still could be damaged.


Last edited by Teal Sc400; 09-12-16 at 07:28 PM.
Old 09-13-16, 05:09 PM
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mmac0405
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Heres my ecu i didnt notice anything unusual
Attached Thumbnails 92 sc300 bad ecu?-20160913_181020.jpg   92 sc300 bad ecu?-20160913_181041.jpg   92 sc300 bad ecu?-20160913_181053.jpg  
Old 09-13-16, 08:39 PM
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Teal Sc400
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ECU Looks clean, but did u check for the codes, causing possible problems? Follow these steps on getting codes/solutions in correcting possible problems other then the ECU.
http://www.lexls.com/tutorials/intro/codereading.html#

Last edited by Teal Sc400; 09-13-16 at 08:42 PM.
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