× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Do Cold Engines Produce Significant NOx?
Posted to Technical Theory Forum on 8/15/2004 3 Replies

[...trimmed text...]

If you excuse my poor English?:-)

The combustion phases in an SI (spark ignition) engine mainly have two phases: Chemi-ionization and thermal ionization. During the chemical phase, the main purpose ... Login to read more.

3 Replies Received (View Replies)