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Tony Callas | Callas Rennsport | 310-504-1809

CR Porsche Sports Car & GT4CS Racecar PDK Clutch Oil Service


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Remove the underbody panel, drain the PDK transmission fluid. The clutch and gear fluids are the same, not to be confused with the final drive gear oil. There are two drain plugs for final drive gear oil due to the shaft bearings. Replace the PDK transmission pan and all the pan bolts. The genuine kit…

CR Porsche Panamera PDK Clutch Fluid Service


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CR Porsche Panamera PDK Clutch Fluid Service Remove underbody panel, drain PDK transmission fluid. Please note: The clutch and gear fluids are the same. Support transmission with transmission jack, remove rear transmission support and install VW holding support tools, tool part numbers: Transport eyebolt 9700 x2, VW519 Tube x1, Assembly tool t10301/1 x1, 10301/9 x1….

CRTechs Complete Car Check-Over


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The CR PPI will no longer be offered, it now will be called a “CR Complete Car Check-Over”. The CR Complete Car Check-over will consist of multiple modules and only be offered as a whole when someone approves as such. These are the modules we are offering aside from a whole: VERY THOROUGH CAR CHECK…

Porsche Engine Bore-Scoring Preventive Maintenance


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There’s been a lot of chatter lately about Porsche engine Bore-Scoring issues in relation to the 9X6’s (986 & 996) and 9X7’s (987 & 997). Without a doubt, these issues do exist, our goal is to mitigate the chances of this happening to you and your car. With these simple measures, you should have better…

Cayenne Base (6 cylinder) Fault P12A2


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SCAN TOOL: Scan DME for faults. SCAN TOOL: Check DFI SET-POINT and ACTUAL high pressure circuit pressures in actual values (35000.00 mbar). SCAN TOOL: Check MAF READINGS (Mass air flow) sensor. Engine OFF and Key ON, MAF Signal voltage not to exceed 1.2 Volts. SCAN TOOL and MANOMETER: Fuel trim values and check crankcase breather…

Porsche Fuel Trim Guide


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DME 5.2.2 Throttle By Cable DME 7.2 E-Gas (Electronic Throttle) DME 7.8 3-Chain and Turbo ————————————— Oxygen Sensing or Fuel Trim Mean Value (Short Term Fuel Trim= STFT):  This is Lambda Long term fuel trim is always working to keep this at “1”. Less than one is rich and greater than one is lean. Please…