I have a jumper harness that i used to go from my obd1 p28 to obd2a harness that worked good, but now i have got an ls, and am going p75 obd1 to obd2b, just wondering if the harness will work or if i have to get a new jumper harness for the p75... thanks

 

you need a different harness. obd2a is not the same as obd2b. will not work properly if you try to use your obd1 to obd2a harness on your obd2b car.