Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 92 Honda Civic VX Failed Smog High HC at 25pmh

comegetme · 12-06-2017, 06:21 PM

It looks like I'm having the same issue. All values are in range, except HC at 25 mph. Question: Will temporarily swapping in a CA ECU from eBay for the smog test likely resolve it? My understanding is that with the CA ECU, the car does not go into "lean burn", and thus behaves exactly like a Cali VX. Seems obvious, but I'm wondering why the previous posters did not go that easy route. Your thought are much appreciated.

12-06-2017, 06:21 PM	#6 (permalink)
comegetme EcoModding Lurker Join Date: May 2010 Location: Los Angeles Posts: 8 Thanks: 1 Thanked 0 Times in 0 Posts	HC of 49 state Civic VX too high It looks like I'm having the same issue. All values are in range, except HC at 25 mph. Question: Will temporarily swapping in a CA ECU from eBay for the smog test likely resolve it? My understanding is that with the CA ECU, the car does not go into "lean burn", and thus behaves exactly like a Cali VX. Seems obvious, but I'm wondering why the previous posters did not go that easy route. Your thought are much appreciated.