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29 results found for eXponentia

...Diagnsotics CAN Bus Citroen C8 A needle in a haystack eXponentia gets to grips with the Controller Area Network (CAN) Bus system and figures out an intermittent fault on a 2007 Citroen C8 climate control system. I am sure we have all become aware of the complex nature of wiring...

...DPF systems seem to be gathering pace in the problem list. The Zafira B Z19DT is one such call we deal with regularly. On investigation of the fault codes the DPF pressure sensor seems to be at fault, but the rubber pipes located near the DPF may have melted through. And codes for gl...

...In 1995 BMW introduced the EWS2 system for passive immobilisation of the engine management systems. This was the first time they installed transponders into the ignition key with a rolling type encryption code. The main function was that each time the key was cycled, the code in the tr...

...Filter Air Particulate System eXponentia looks at the Filter Air Particulate (FAP) system, the aims of the system and the opportunities it presents for the independent garage. I suspect few technicians would argue that diesel engines have changed beyond all recognition within the last 1...

...This vehicle suffers with a poor idle quality and fault codes for high fuel rail pressure. This vehicle has a pressure relief valve located in the fuel rail. A mechanical devise to relieve over-pressure on the fuel rail. This valve has been know to fail. When removing this valve it ofte...

...  ​Recently, we have noticed a large number of garages calling the Helpline with faults logged for catalyst efficiency below threshold, only to be told the garage has recently replaced the CAT following a failure of the original part. The customer then returns a few weeks lat...

...A 1997 Jaguar XJ8 4.0 came into a subscriber’s workshop, with the customer asking for the injectors to be cleaned. Previous garages had tried to identify the cause of poor idle quality and none had been successful. The first step was to code read for any faults stored, only 1 was retr...

...Since the introduction of Controller Area Networks (CAN) in cars in the 1983, Bosch has continued to improve this method of communication between control modules. Modern vehicles have up to 70 modules communicating on various bus networks. This added complexity has  many garages runni...

...Recently, we have received several calls form garages relating to various fault lights on the BMW X3 E83.     The SRS, ABS/DSC and 4X4 system warnings lights are illuminated. On investigation, the main code seems to be the LEW sensor, or commonly known as the Steering Angle...

...Have You Tried Recalibration?  Modern cars are more complex, as well as less fault tolerant. Sometimes fault codes are created by unknown circumstances, not because of a true fault. eXponentia’s Steve Carter relates a few instances where the fault might be considered to be phan...



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