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Re: LPG (propane)and CNG modified vehicles; legal or not?
Posted to Emissions Forum on 3/12/2018

This sounds like the I/M 240 testing that was discussed in the nineties.

While on the dyno, there was a target on a monitor and you had to keep a cursor on it as the load on the dyno was modulated for 240 seconds. It proved out to be too difficult to do cons... Login to read more.