Any ideas? HSV started missing and now will only run on 5 and sometimes 6 cyls;
New o2 sensors,comp; ok,plugs new,injectors ok,fuel pump and pressure and flow ok,good spark,EFI shows no trouble codes,but Bank 2 only shows around .1to .15 volts Bank 1 as normal,ie .3 to.9V.Tried different PCM.
Bank 2 fires on 1 not 2 or 3 and occasionally 4.Bank 1 all 4.
Anyone experienced this problem as I am now struggling with it.