2013 1.8L throws codes and stutters when hot
i have been trying to diagnose for 2 days now
for starters just got the vehicle inherited a week or two ago, ran fine for a few days then shut off in traffic and was stuttering out a bit when at stop lights, changed the oil and it seemed to run a bit better
fast foward a day later and now once the engine gets up to temp it begins to throw codes and stutter and perform poorly, yesterday i kept having the same issue of voltage drop from 14.5 to 13.5 and the engine started performing poorly, the tachometer also would go to 0 when that happened. the cel , power steering lights went on aswell.
codes were for bad communication between modules and once i let the car rest and cool off it would run normal again until warm
i did voltage tests on grounds and cleaned all them up, repaired some wires on the harness but to no avail
anybody see this happen??
surprisingly i dont think theres an issue with the valve cover. the only thing i can think is maybe electrical?? or oil issue?
codes i pulled today after warm up are included
thank you