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My googling agrees with [USER=15016]@Alkhater[/USER]. Lean air-fuel ratios cause higher NOx levels. Rich will cause more CO levels[URL unfurl="true"]https://www.walkerexhaust.com/support/tech-tips/five-gas-diagnostic-chart.html[/URL]
My googling agrees with [USER=15016]@Alkhater[/USER]. Lean air-fuel ratios cause higher NOx levels. Rich will cause more CO levels
[URL unfurl="true"]https://www.walkerexhaust.com/support/tech-tips/five-gas-diagnostic-chart.html[/URL]
