Lets talk about deleting OEM Hydraulic Power steering pump
Looking at 2000 MR-S Spyder EHPS for a number of reasons. The MRS Spyder and 94-99 Celica 3SGE use a 100A Fusible Link for charging system. These two chassis also use an 80amp alternator to charge the battery.
Both MR-S (EHPS) and 2010+ Yaris (EPS) both use a 50A circuit load protection....
for the most part hydraulic pumps provide better feedback to driver than electric units and being that mr-s spyder uses an hydraulic rack makes the most sense. The 2008+ yaris EPS conversion would need a non hydraulic steering rack
I can get you a wiring diagram for the Yaris so you can get an idea what inputs it needs.
finally found the info
http://www.6gc.net/forums/index.php?showtopic=66246&st=1840
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