Quote:
Originally Posted by MetroMPG
PS: anyone planning to mess with EGR will need an MPGuino or equivalent to properly measure the effects on fuel consumption.
The ScanGauge will not report fuel consumption properly under high EGR concentrations for the same reason it doesn't work well with lean burn.
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I think the EGR enters via intake manifold, but the MAF sensor is upstream, i.e. in the snorkel. If so the ScanGauge should be accurate regardless of EGR manipulation. Is that right?