Tells you quite a lot really.
Airflow readings from the MAF can give indication of a failing MAF, work out bhp roughly (altho its never precise in wazzers case due to setup), how hard the N75 valve is working to meet the boost (load in ME3.
, also can give signs of a weak actuator/limp mode.
Knock is a pretty handy one too....in this case wazzers are all 0* correction factor...this means ECU is not detecting any knock in the cylinders and not pulling the timing back. probably due to the meth running which helps a lot....a fair amount of timing can be added there. Probably on ball for quickest (highest BHP) AGU k03s if he took it back to nick and got my map altered.
If he went and logged the lambda voltage one (whichever block it is...9?) can work out a basic AFR map and plot it see whats happening fuelling related.
