Direct Injection Q's
Registered User
Joined: Feb 2003
Posts: 439
From: Northern VA
Most of those ultra-lean burn Honda engines got taken away because they couldn't meet emissions. For example, early Insights had a lean burn program that allowed them to go WAY lean, but for 2nd or 3rd year models it was programmed out.
I can only assume that this was due to high NOx emissions. Going back the Insight, its NOx is only marginally lower than a Corvette's!
I can only assume that this was due to high NOx emissions. Going back the Insight, its NOx is only marginally lower than a Corvette's!
Registered User
Joined: Jul 2001
Posts: 3,132
From: Santa Clara, CA
Most of those ultra-lean burn Honda engines got taken away because they couldn't meet emissions. For example, early Insights had a lean burn program that allowed them to go WAY lean, but for 2nd or 3rd year models it was programmed out.
I can only assume that this was due to high NOx emissions. Going back the Insight, its NOx is only marginally lower than a Corvette's!
I can only assume that this was due to high NOx emissions. Going back the Insight, its NOx is only marginally lower than a Corvette's!
Does anyone know what percentage of NOx a typical three-way cat eliminates?
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