Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Catalyst location on lean burn Honda cars

RobertSmalls · 05-09-2010, 08:49 PM

Ah.

The ECU decides when it's time for lean burn mode. My engine can only do it under very light loads, and it won't do it until it thinks the catalyst is hot. But if conditions are right, it will automatically go in to lean burn, and stay there until I ask for more power than it can provide while lean burning.

Unless you have a Civic VX, HX, 02-05 Civic Hybrid, or MT Insight, you don't have a lean burn Honda. AFAIK, the folks on this forum who have converted their cars to lean burn have installed an engine and ECU from one of those cars. Lean burn models use different heads, pistons, ECUs, and emissions systems.

05-09-2010, 08:49 PM	#26 (permalink)
RobertSmalls Left Lane Ecodriver Join Date: Aug 2008 Location: Buffalo, NY, USA Posts: 2,257 Prius C - '12 Toyota Prius C Thanks: 79 Thanked 287 Times in 200 Posts	Ah. The ECU decides when it's time for lean burn mode. My engine can only do it under very light loads, and it won't do it until it thinks the catalyst is hot. But if conditions are right, it will automatically go in to lean burn, and stay there until I ask for more power than it can provide while lean burning. Unless you have a Civic VX, HX, 02-05 Civic Hybrid, or MT Insight, you don't have a lean burn Honda. AFAIK, the folks on this forum who have converted their cars to lean burn have installed an engine and ECU from one of those cars. Lean burn models use different heads, pistons, ECUs, and emissions systems.