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Escort Tech Info - AFR/Lambda to CO
The AEM AFR gauge only reads AFR/Lambda, but all the Cosworth fuelling documentation works on setting CO% figures. This table is a conversion between the two:
Closed Loop Mode
With Lambda/closed loop control in place, the Cosworth figures as supplied by Motorsport Developments for their 320BHP Evo chip engine map state the following:
- 1.5% CO
- corresponding to 13.94 AFR/Lambda
Without Closed Loop
Without Lambda/closed loop control in place, the Cosworth figures as supplied by Motorsport Developments for their 320BHP Evo chip engine map state the following:
- 2.5% - 2.7% CO
- corresponding to 13.56 - 13.49 AFR/Lambda
Conversion Table
Originally sourced from: https://www.bmw2002faq.com/forums/topic/141116-afr-to-co///