76mgb88rx Posted May 14, 2006 Share Posted May 14, 2006 Will my 88 rx show ecu codes even if the check engine light is not illuminated? Link to comment Share on other sites More sharing options...
[HTi]Johnson Posted May 14, 2006 Share Posted May 14, 2006 Yes, as long as you connect the black connectors. Link to comment Share on other sites More sharing options...
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