The FNG Posted July 1, 2013 Share Posted July 1, 2013 (edited) I just bought a 90 Loyale manual 5spd pb 4x4 for $200 (score!). Put new timing components, filters, oil and fixed the cross-threaded spark plug. Still needs a timing adjustment, but it is throwing CEL codes 24, 31, and 34. I know how to fix code 34, I've been through that on my other Loyale. I couldn't find anything on the other 2. Any advise? 24- air control valve or circuit 31- throttle sensor or circuit TIA Edited July 1, 2013 by The FNG Link to comment Share on other sites More sharing options...
somick Posted July 1, 2013 Share Posted July 1, 2013 I fixed code 31 by simply wiggling the throttle position connector, I hope it is that easy for you too. Good luck, Sam Link to comment Share on other sites More sharing options...
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