dsb Posted March 21, 2008 Share Posted March 21, 2008 1992 sc400 anyone no what engine code #21 and #28 mean?? thx Quote Link to comment Share on other sites More sharing options...
moe&michelle Posted March 30, 2008 Share Posted March 30, 2008 1992 sc400 anyone no what engine code #21 and #28 mean?? thx yes i do the main oxygen sensor circuit, 21 is for the left main bank o.s.c 28 is for the right bank main o.s.c Quote Link to comment Share on other sites More sharing options...
dsb Posted March 30, 2008 Author Share Posted March 30, 2008 1992 sc400 anyone no what engine code #21 and #28 mean?? thx yes i do the main oxygen sensor circuit, 21 is for the left main bank o.s.c 28 is for the right bank main o.s.c ok thx Quote Link to comment Share on other sites More sharing options...
mburnickas Posted March 30, 2008 Share Posted March 30, 2008 I always tell people to buy an OBDII CAN reader..Well worth the $$$$.Napa reads codes for free but does NOT test for OBD readiness. Quote Link to comment Share on other sites More sharing options...
dsb Posted March 30, 2008 Author Share Posted March 30, 2008 I always tell people to buy an OBDII CAN reader..Well worth the $$$$.Napa reads codes for free but does NOT test for OBD readiness. ok thx i'll have to buy one of those Quote Link to comment Share on other sites More sharing options...
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