I have a 97 civic ex, It has a neptune rtp/p28 ecu and can't pass emissions W/it, So am I able to just put the stock ecu back in and be good to go? And my next issue is I also have the srs light on due to having a quick release hub/steering wheel, I have read You can use a resistor but how and what resistor is what I have not been able to find. If any one can help lmk, thanks!

 

What motor do you have in the car?

 

turbo d16y8 I just got the car and I'm new to imports but from what I can tell it's been coverted from obd2 to obd1. i have a feeling This is going to be a pita lol..

 

Take the turbo off and put the stock ECU back in and you should go right through emitions. If you're still unsure of it, dump a bottle of rubbing alcohol in a tank of gas and that should bring your emitions down.

 

why exactly did you fail?

did they try an hook up a computer to ecu? or was it just the sniffer test you failed?

In delaware we only do the sniffer test ( thank goodness) and i failed the first time with my turbo setup. My tuner showed my a hose that was running to my intake manifold... i just pulled the hose and went through emissions and passed with flying colors. I have a b16a2, dont know if you can do the same thing i did but its worth looking into