alright..i have a 98 civic dx with a b20b swap. i was running the car with the sohc p2p computer and it ran fine(2000rpm and up). so i bought the jumper harness to make it obd1 with my p28, so i plug it in and the car goes on but wont idle!! im sure is the right jumper harness, obd2a...so i thought maybe it was running to rich on fuel so i messes with the fuel reg. brought it down to 38, it was on 50....but that wasnt the problem..if i plug my p2p computer on it will run, i tried a p75 that i have it doesnt run with that either..the tps has been changed, the iacv has been changed, ignition module, map sensor, a few other things. if anyone knows or has an idea what this could be let me know??? thanx

 

anyone???