DME Values - What does this mean?
09-25-2002, 12:57 AM
#1
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DME Values - What does this mean?
DME Actual Values
The following DME Values were reported as part of a PPI on a '97 993 with 57,000 miles. What does this mean?
Range 1 Cylinder 1-3(TRA) -0.17
Range 1 Cylinder 4-6(TRA2) -0.09
Range 2 Cylinder 1-3(FRA) 1.02
Range 2 Cylinder 4-6(FRA2) 1.01
Oxygen sensing (FR) 0.98
Oxgen sensing (FR2) 0.99
Hot film MAF 0.74 V
Ambient Pressure 930 hPa
The following DME Values were reported as part of a PPI on a '97 993 with 57,000 miles. What does this mean?
Range 1 Cylinder 1-3(TRA) -0.17
Range 1 Cylinder 4-6(TRA2) -0.09
Range 2 Cylinder 1-3(FRA) 1.02
Range 2 Cylinder 4-6(FRA2) 1.01
Oxygen sensing (FR) 0.98
Oxgen sensing (FR2) 0.99
Hot film MAF 0.74 V
Ambient Pressure 930 hPa
09-25-2002, 05:31 AM
#2
tra 1-3 1 is air/fuel befor cat on the left bank; tra 1-3 2 is after the cat. Vise versa with 4-6 its just the right side of the motor. This is messurements the car takes to adjust air/fuel ratios.
