Forgive me if this is posted in the wrong section
so, i did a smog check on my 04 LB7 (california :screwy and passed of course. anyways the technician and were discussing some of the differences in emissions between a gas rig and diesel.
we decided to put the sniffer in the tail pipe and run it on the dyno. yeah, i know it is not set up to check diesels but we wanted to see what we would get anyways. this was not an official, connected to the state, etc check. just the test procedures.
here are the readings
HC = 0%
CO = 0.06 %
CO2 = 14.2 %
Oxygen = 17.3%
NO = 1128 PPM
he said if he was to somehow get it to run as a gas truck it would have passed the test per EPA/CARB standards for that year
he was really surprised that the HC reading was so low it read "0", Oxygen was high which is not used in the smog check but interesting, CO was close but still within the limits and NO was well within the limits
to me this looks like a double standard when it comes to emission requirements
nothing too scientific, just some fun at a smog shop where fun rarely happens :driving:
so, i did a smog check on my 04 LB7 (california :screwy and passed of course. anyways the technician and were discussing some of the differences in emissions between a gas rig and diesel.
we decided to put the sniffer in the tail pipe and run it on the dyno. yeah, i know it is not set up to check diesels but we wanted to see what we would get anyways. this was not an official, connected to the state, etc check. just the test procedures.
here are the readings
HC = 0%
CO = 0.06 %
CO2 = 14.2 %
Oxygen = 17.3%
NO = 1128 PPM
he said if he was to somehow get it to run as a gas truck it would have passed the test per EPA/CARB standards for that year
he was really surprised that the HC reading was so low it read "0", Oxygen was high which is not used in the smog check but interesting, CO was close but still within the limits and NO was well within the limits
to me this looks like a double standard when it comes to emission requirements
nothing too scientific, just some fun at a smog shop where fun rarely happens :driving: