Sudden drop on MPG causes?
I have not used my 2008 Windsport 34B with a Ford V10 as much as I would like. However, I recently noticed on the last few trips out, my MPG has dropped significantly. Where I was averaging 6-7 MPG, I...
Forum Discussion
tderonne wrote:
You are missing my point. The engine controller doesn't know the air fuel ratio. The information is not there for the Scan Gauge to monitor.
Maybe you are watching the short and long term fuel trims?
Perhaps you need to take it up with the folks at ScanGauge. As the link I gave you shows, it monitors the air fuel ratio and shows it as the optimal 14.7 during normal cruise on my GM 8.1L. This drops when I am accelerating or climbing a hill as the engine is fed more fuel for the additional load.
Are the short and long term fuel trims given as 14.7??? NO, They should be close to "0" or less than 10% plus or minus for each.
Perhaps the ScanGauge is taking all of the information available and calculating the A/F ratio.
If you read what is on this link, it shows that on some vehicles, it gives the fuel trims AND air fuel ratio. Scan Gauge X commands
