diamondred 63 #1 Posted July 18, 2014 When did they start putting emissions controls on the 520h carbs? Share this post Link to post Share on other sites
Martin 2,133 #2 Posted July 18, 2014 (edited) spec g is when the emission carbs were introduced. if you look at the engine tag it has a spec number, something like..... P216G-I/10976G . spec G P216G-I/10976D . spec D the 520 engine would have P220 instead of P216 they changed the id tag layout to reflect the 1995-1998 California Emission regs. heres a spec G tag Edited July 18, 2014 by Martin Share this post Link to post Share on other sites
