Good evening dear community, have been the owner of a V70 1 built in 1997 2.5 10V 144 hp So now to my problem… Have problems with the ignition system as I suspect.. When I drive up under Last Berg the engine stutters more times less in warm condition.. Have replaced today the more badly patched hoses from the previous owner to the air filter box and the control unit against new ones. Result: gas acceptance more noticeable difference, but my problem with the stuttering under load at mountain on drives at 2000-3000 revolutions in the 2nd and 3rd gear has unfortunately not been spared.. I ask for help what can be the problem in your opinion.. Ignition plugs, distributor, ignition cable or the ignition coil ??? thank you in advance for your help.