no just tells you that their is compression loss
when i did it on my vietesse
cylinder 1 was down on compression turned out to be a hgf
if you want more detail try a leak down test
similar to compression test but using compressed air instead
well being just outside newquay we very rarly get snow but ut started yesterday at about 13:30
and looked like this after 20 mins
then at about 15:00 was like this
and this morning it looks like this and is stll slightly snowing
it was quite bad on the roads as cornwall isnt used to...
what i hve found it that if i unplug the tps then it stops doing it but the resistance check on shows up no faults also reads 0.50 on the multimeter @ 20k setting
what things could cause this so i can illiminate them on by one