Quote:
Originally Posted by Ahmed303
Hmm!!! I am really curious on how the single MAF setup can affect only one bank. Also how a faulty MAF can produce a Lean condition instead of a Rich condition.
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The MAF measures the density of the air. Depending on how dense the air is the system either reduces or adds fuel to compensate.
There are both short and long term values. Short term fluctuations occur in essentially real time. Long term is more an average over time. If long term exceeds 20% then the SEL is illuminated.