

The diagnostic adapter of new generation BMW INPA K+DCAN allows to carry out those works which only owners of the company dealer equipment could carry out earlier. The INPA K+DCAN adapter is connected to the car through the K-line or the CAN tire of data transmission that allows to work with any electronic block of the car. The INPA K+DCAN scanner is used for carrying out full-function professional diagnostics of BMW, MINI and Rolls-Royce cars, adaptation of blocks and units, coding, programming.

Connection of the scanner happens through USB an exit. I'm thinking that perhaps erratic ignition, sensed by the knock sensor is being 'smoothed over ' by the ECU retarding timing to achieve quieter running, therefore when I disconnect the knock sensor, the 'smoothing' is removed and I get to feel the misfire in it's raw state.The diagnostic BMW INPA K+DCAN scanner works with the original software of BMW INPA concern which is included in the delivery package and also with the dealer software of DIS which can be installed on the personal computer (or the laptop). I'm not getting any fault codes, I've already changed plugs & leads but I'd like a firm diagnosis before I fire more parts at it (coilpack next) Knock sensor voltage seems quite erratic, jumping up and down all over the place (but perhaps that's normal ?) which made me suspect a faulty sensor, but disconnecting the sensor seemed to exacerbate the existing problem rather than a) curing it or b) creating a totally different one.


I'm new to INPA, but I've had a look at the analogue readouts with the car in motion and strangely, the 'roughness' values remain quite firmly rooted to zero under load, rising a little on the over-run or at idle. My wife's recently aquired an '05 R50 Cooper, but as I've become more familiar with the car I've realised that there's a subtle misfire going on. I see from looking around here that the clientele are almost exclusively RWD, but very knowledgable, hence my decision to post here.
