Subject	ECU switch from 90 to 93
Posted by	biobreed on May 12, 2010 at 8:46 AM
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Message	My z has been running rich (black soot on bumper and can see and smell the exhaust coming from tail pipes) since I replaced my fried -90 ecu with a -93 ecu A18-A99MEO. I have done the o2 sensor check using the ECU in mode II. It is showing no check engine light in this mode for each side which indicates lean, according to the faq. Is this ecu even compatible with my o2 sensors? Help! Thanks
Follow Ups	ECU switch from 90 to 93 - biobreed 08:46:33 05/12/10
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