I failed the Test Only Smog Test last week. I failed the NO(ppm) part. Here where the results,
15mph Max is 785 and I got 1328
25mph Max is 724 and I got 730
So I put on a New IAC Valve, EGR Valve, O2 Sensors and backed the Timing Back to 10deg.
Well, today I went and had a pre test smog check done and here where those results,
NO(ppm)
15mph was 1073
25mph was 719
And my HC(ppm)
15mph Max is 114 and I got 191
25mph Max is 88 and I got 91
So I failed the 15 mph NO(ppm) and both parts of the HC(ppm) as to where the 1st time I passed the HC(ppm). I dont know what else to do except put back on the stokcer 4 cat h-pipe. Right now I have a 2 cat Mac high flow h-pipe. The shop I took the car to today did a diagnostic check on the car and found nothing wrong with it. They said it was highly moded and needed to be put back to stock form. They took only a look at my car and didnt want to figure out what was cauing my car to fail. What else can I do?
15mph Max is 785 and I got 1328
25mph Max is 724 and I got 730
So I put on a New IAC Valve, EGR Valve, O2 Sensors and backed the Timing Back to 10deg.
Well, today I went and had a pre test smog check done and here where those results,
NO(ppm)
15mph was 1073
25mph was 719
And my HC(ppm)
15mph Max is 114 and I got 191
25mph Max is 88 and I got 91
So I failed the 15 mph NO(ppm) and both parts of the HC(ppm) as to where the 1st time I passed the HC(ppm). I dont know what else to do except put back on the stokcer 4 cat h-pipe. Right now I have a 2 cat Mac high flow h-pipe. The shop I took the car to today did a diagnostic check on the car and found nothing wrong with it. They said it was highly moded and needed to be put back to stock form. They took only a look at my car and didnt want to figure out what was cauing my car to fail. What else can I do?