A rough guide to Air Fuel Ratio or AFR

[DaleJeffree]

Hey everyone, I hope this helps.
This is something I found on line originally from Motec from around 2010 but still relevant

[King_Jam]

Thanks heaps, I’m wiring in an Apexi AFR, widebannd o2 plus mutiple data logging sesors into my EF-JL Mira with hope to get a better tune

[DaleJeffree]

It’s also worthwhile to look at spark plugs and afr to determine how the engine is running and to compare your plugs to the afr readings.