INPA 'Rough' measurement & fault code 115

[John_D]

Hi all.

I got myself a copy of inpa finally.

On cylinder 4 I have a high value on the rough measurement:


What does rough signify? Misfire?

Also fault code 115(2 occurrences) , I presume this is very minor?
I read it's the thermostat heating element.

Also I have a break pad wear sensor kaput. Whereabouts in INPA can I see which one is at fault? I searched around and can't find it.

Cheers.

[Gar]

Until cylinder 4 shows up as red instead of green i wouldn't worry about it when a coil is gone the reading will be off the scale and be highlighted in red

The problem with inpa sometimes is that you can start reading to far into it and finding faults that dont really need attention

[John_D]

I suppose your right @[Gar], still it's something I'll be keeping an eye on.

Does anyone know exactly what is being measured in the rough test? Knock?
I hear a sticky lifter from time to time and my spidey senses tell me it must be at cylinder 4 hence the rough measurement.
Car runs very well at the moment and is returning excellent fuel economy.