CarTechnoloGY
Are these correct values for n63 engine? - Printable Version

+- CarTechnoloGY (https://cartechnology.co.uk)
+-- Forum: Discussions All about Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=310)
+--- Forum: Automotive Help & Discussions / Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=40)
+---- Forum: BMW - Mini - Rolls Royce (https://cartechnology.co.uk/forumdisplay.php?fid=61)
+---- Thread: Are these correct values for n63 engine? (/showthread.php?tid=37756)

Pages: 1 2


Are these correct values for n63 engine? - bmwlover - 26-07-2018

Why do I see different values on different cylinders from ista d? Please see screenshot.


RE: Are these correct values for n63 engine? - RocketSurgeon - 27-07-2018

The different cylinders have each misfired a different number of times. The DME keeps a rolling tally of how many times each cylinder has misfired. It helps to determine if you have a problem with a plug/coil/injector.


RE: Are these correct values for n63 engine? - bmwlover - 27-07-2018

So do I have problem?


RE: Are these correct values for n63 engine? - BaggieMatt - 27-07-2018

(27-07-2018, 08:06 AM)bmwlover Wrote:  So do I have problem?

Look at how many kms you have done and work out how many kms per misfire for your worst cylinder.
That should give you an idea about how often you get a misfire on that cylinder.
Then consider how many times in that distance your cylinder has had to fire.
That should give you a pretty good idea of what % of fires are misfires.


RE: Are these correct values for n63 engine? - bmwlover - 27-07-2018

I have done only 42000km


RE: Are these correct values for n63 engine? - BaggieMatt - 27-07-2018

(27-07-2018, 08:47 AM)bmwlover Wrote:  I have done only 42000km

I know. Now try doing the maths.


RE: Are these correct values for n63 engine? - bmwlover - 27-07-2018

So it misfires in every 17kms. Is it good or not? Must be so or not? injectors are index 11


RE: Are these correct values for n63 engine? - BaggieMatt - 27-07-2018

(27-07-2018, 08:55 AM)bmwlover Wrote:  So it misfires in every 17kms. Is it good or not? Must be so or not? injectors are index 11

If you average 40 km/h that is every 25.5 minutes. At an average rpm of 2000 that is 1 misfire every 25000 times it has fired. If it was every 100 times then you would have an issue but 1 every 25000 is hardly significant.


RE: Are these correct values for n63 engine? - bmwlover - 27-07-2018

Thank you very much but do not have an idea why it happens. Car was new, has only 42000km. What to replace in order not to have this misfire? Injectors are index 11.


RE: Are these correct values for n63 engine? - Node - 27-07-2018

Use better quality gasoline? Or replace a driver smile