alright when i jump my service connector i dont get nuttin but i know my ecu is good. so do i ground d4 off the ecu??? o ya its obd1

 

bump

 

Need more info: OBD0-OBD1 jumper harness? If so, you need to connect the blue wire to the orange wire(Rywire harness) or use a switch to read your codes.

 

ya its one a obd0 to obd1 jumper. not sure of who make the harness. its not a ebay one tho. which pins would i put the switch in between tho?

 

Are there 2 wires that are not hooked to anything coming out of the jumper?

 

here what i cut. i had a shop do the jumper. i guess my old one was ****ed. well i started takin tape apart etc. and found this. i know this isnt good. i had this done awhile ago also. my car is going in to safe mode going down the highway.

 

Sorry, that's above my paygrade and limited knowledge. Maybe someone else can chime in. Good luck

 

lol i got it figure out already. the wire that went to b20 wasnt hooked up hook it up and where your spose to jump it under the dash works fine now thanx tho