I have a 90 ef std converted to mpfi and a obd0 -obd1 jumper harness made by me does anyone know what ecu pin i have to short to check for the engine code???
thnaks guys

 

i thought all you had to do was connect the two wires in the engine bay (driver side)? then the ecu starts throwing out codes in the in the cluster. thats the way mine works.

 

this info is out of the 1995 Civic Manual (page 11-15):

it shows that the service check connector goes to 'D4' and is a brown wire in this car (which is OBD1 and has a p-28 ECU and D16Z6) . there is also a black wire in this 2 pin connector-->located next to glove box in the '95. the black wire may or may not go to ground. my obd1 car isn't here so i can't test this for you. hope this tidbit helps!

 

D4 + D22

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ef92b &raquo;</TD></TR><TR><TD CLASS="quote">D4 + D22 </TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sam385 &raquo;</TD></TR><TR><TD CLASS="quote">this info is out of the 1995 Civic Manual (page 11-15):

it shows that the service check connector goes to 'D4' and is a brown wire in this car (which is OBD1 and has a p-28 ECU and D16Z6) . there is also a black wire in this 2 pin connector--&gt;located next to glove box in the '95. the black wire may or may not go to ground. my obd1 car isn't here so i can't test this for you. hope this tidbit helps!</TD></TR></TABLE>
thanks guys