my emissions passing device
06-17-05, 08:59 AM
#1
my emissions passing device
Failed......
But I think it's because I didn't open the valve enough to flow enough air. What I did was I took the stock main cat and removed the studs from it so you can put regular bolts in to hold it on. After that I welded an adapter to the end of the air pump inlet pipe. I attached a quick disconnect air hose adapter to the adapter. Once this was done I took a stanard compressor air hose and ran it through the shift boot and out through the side of the center console and attached the other end to a customised paintball air fill rig that attaches to a scuba tank. So just picture a scuba tank with a compressor air hose attached to it that runs through the shift boot and into the cat.
When the technician started the test I cranked the tank opened partially. I had done this a few times before to make sure the cat stayed fairly clear (I don't know why). So on the low RPM reading i got as followed
HC CO
reading 0 .05
limit 250 1.20
then I had to hold the RPMS at 2500-3000 for the high RPM reading and I recieved as follows.
HC CO
reading 116 4.56
limit 250 1.20
I think what happened is I was running out of air in the tank. I can pay a guy I know $500 to pass me without even going if I choose, but I'm not sure if I'll be able to pass even if I put more air through it for the high RPM reading.
the CO% + CO2% was 15.35 for the high as well.
But I think it's because I didn't open the valve enough to flow enough air. What I did was I took the stock main cat and removed the studs from it so you can put regular bolts in to hold it on. After that I welded an adapter to the end of the air pump inlet pipe. I attached a quick disconnect air hose adapter to the adapter. Once this was done I took a stanard compressor air hose and ran it through the shift boot and out through the side of the center console and attached the other end to a customised paintball air fill rig that attaches to a scuba tank. So just picture a scuba tank with a compressor air hose attached to it that runs through the shift boot and into the cat.
When the technician started the test I cranked the tank opened partially. I had done this a few times before to make sure the cat stayed fairly clear (I don't know why). So on the low RPM reading i got as followed
HC CO
reading 0 .05
limit 250 1.20
then I had to hold the RPMS at 2500-3000 for the high RPM reading and I recieved as follows.
HC CO
reading 116 4.56
limit 250 1.20
I think what happened is I was running out of air in the tank. I can pay a guy I know $500 to pass me without even going if I choose, but I'm not sure if I'll be able to pass even if I put more air through it for the high RPM reading.
the CO% + CO2% was 15.35 for the high as well.
