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ECU 700 1989

posted by  Michael Johnson on  Fri Aug 12 09:03 CST 2005
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last visit: Wed Sep 16 06:00 CST 2009
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I have been told that my ECU is faulty and the service shop that I use will not install an aftermarket unit. They claim to see to many problems with them. Has anyone used these ECU's with any unusual results?








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ECU 700 1989

uid 26758's pic
posted by  slyfox4 on  Sat Aug 13 13:52 CST 2005
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Which ECU do you need? The 556 is replaced by the 933. Just go to your local junkyard and find one. Just a very few minutes of your time to make it work better.
--
1965 Mustang A block 4 speed, 1969 Cougar Eliminator, 1990 Super-Charged Thunderbird and a car (740) that my wife can drive!!!








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ECU 700 1989

posted by  hardknocks! on  Fri Aug 12 10:25 CST 2005
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last visit: Sun Oct 12 06:42 CST 2014
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hi there, it only takes about 10 minutes to install the e.c.u.
consider doing it yourself. if its the 561 that went bad you can pick up a 951 replacement on ebay usually for around 50.00$-100.00$ or someone here may have one. im fresh out at the moment.
i have read hear quite a few times about poor quality aftermarket e.c.u.s
i suggest find a used bosch. good luck







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