Attached is a copy of a technical bulletin that was sent out to all Utah County IM stations recently. At the bottom of the first page and beginning of the second it says that they've been seeing a lot of conversion that cheat the system because the aren't OBDII compliant and they are setting off check engine lights. The bulletin claims that these vehicles running on gaseous fuel are often dirtier (I call BS on that).
I just want to keep people informed as I've seen some aftermarket conversions that didn't seem to take the OBDII system into account and just has a check engine light (MIL) on the the whole time. These probably will have a lot of difficulty getting registered in the near future.
I've also attached the emissions report for a 92 CNG Dodge Van we recently tested. Because of the age it had to be tested using the tail pipe probe. Notice the results of the high speed test. It could have passed with 220 ppm Hydrocarbon and it got 1! With CO it could have passed with 1.2 and it got .01. Just thought I would share.
-Derek
I just want to keep people informed as I've seen some aftermarket conversions that didn't seem to take the OBDII system into account and just has a check engine light (MIL) on the the whole time. These probably will have a lot of difficulty getting registered in the near future.
I've also attached the emissions report for a 92 CNG Dodge Van we recently tested. Because of the age it had to be tested using the tail pipe probe. Notice the results of the high speed test. It could have passed with 220 ppm Hydrocarbon and it got 1! With CO it could have passed with 1.2 and it got .01. Just thought I would share.
-Derek
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