need help to get car reg
 

ok i been looking online all day and keep finding the same stuff but idk if thats my problem. i have a 97 dx civic swapped a 99-00 civic si motor in to is but used the obd2a harness. using a odb1 ecu p28 chipped with a obd2a jumper harness. i went to hook an obd2 scanner up to it to read the codes n couldnt said it wasnt linking up to the ecu. does anyone know whats the problem cuz i have to get my car reg but it still needs to get emissions n i cant get it to link up to the ecu. plz help me out

I'm think if you go just like that and you don't have a cel they have to pass it cuz its not your flat their computer can't read your ecu.. That's what I'm going to do with my 99 prelude and one my buddy's that works at emissions pointed me in this direction..

ok i do have a cel thought i think i dont know cuz my check engine light is on like for my speedo

then you wont pass

Just fix the cel and you will be good

ok if anyone knows anything bout wiring n stuff would like to take them my car to get checked out to see what they can do

because i tried to fix it myself and still have one

I have the same problem with my 01 accord NO cel's.obd2 to obd1 harness and chipped p28 with the cel's they turn on and off like they should but since the emissions place get a "no communincation" error they will not let me pass. onlt thing you can do is fix your cel issue and use the factory ecu be sure to go thru the drive cycles to. the people who do manage to pass only pass by luck. or reg your car in a town that has no emissions.

You do know they hook up the OBD2 reader to your car if it is OBD2 equipped right? If the computer does not communicate with thier computer you will not pass. They also check the CEL with the ignition on and off and also with the car running.

OBD1 has to be done with the sniffer as I used to have a 95 GSR. I just went with my newer car and they hooked up to the OBD port as it is a 2003 and the Wife's car a 2007.

Cel light wont matter how you described it as it is looking for communication and for it to have no active problems while running. To answer the first response that was given to you, yes it is your problem if thier computer cant read your vehicle. You are responsible for your own vehicle. Only way to go around this is do as Tuned Out Tom has stated above.