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Under hood fuse - Regina 700

posted by  interstition on  Tue Jul 19 16:49 CST 2005
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last visit: Mon Apr 28 10:13 CST 2014
[RELATED]

I never fooled with the 20 amp fuse that is under the hood of my '91 740 with Rex-Regina engine management. I always assumed it provided power to the ECY (computer)like the one under the hood of my '89 240 with Bosch LH 2.4 engine management.

Today, just for fun, I pulled the fuse on my 740 while it was running. I was very surprised when Regina just kept chugging along. If this fuse doesn't power the ECU, then what does it do?
--
Andy in St. Paul. '89 244 153K mi, '91 745 Regina 202K, '88 244 184K






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