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Category Archives: 970

LeMans in car Porsche GT2 Callas Rennsport 1996

This is an official in car video of our qualifying from LeMans in 1996. The race team was based in England

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Porsche 986-996-987-997 Fuel Trim Information

Hey Tony, Can you shed some light on a fuel trim fault on my 996. It is reoccurring and I am having a tough time finding the problem. Anytime you have a ME 5.2.2 (1997-1999 986-996), ME 7.2 (E-Gas 986-996) or 7.8 (Roughly 2002-on) 986 and 996 with running issues, check the fuel trim numbers: TRA-RKAT (Idle range which is around 1700 and below) FRA-FRAU-FRAO (cruise range which is around 1700 and above) fuel trim numbers. The Oxygen sensing AKA Lambda or on the later models they call it “fuel trim mean value” is “STFT” short term fuel trim. The TRA or RKAT and FRA or FRAU-FRAO are the “LTFT” long term fuel trim. For TRA and RKAT you want around them “0”. If it is below “0”, the car is running rich at idle and it is taking away fuel in the Idle range. If it is above “0” the car is running lean and it is adding fuel at the idle range. The FRA or FRAU-FRAO should be around “1”. If it is below, the car is running rich in the cruise ... read more

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