https://datazap.me/u/t9t8/surging-lo...&data=24-25-26
I've been battling this issue for a couple weeks now. I have a "surging" or "hesitation" issue when either lugging the engine at low rpm or applying light throttle while just cruising/coasting. In the log my STFT and lambda readings jump up and down. At first it felt like tranny issue (auto trans) but the STFT spazzing makes me think engine. No codes are present.
Things I've already done:
-replaced pre cat 02s
-walnut blasting
-new plugs, coils
-injectors done 20000km ago
-reset adaptations
-cleaned vanos solenoids
if anyone has any tips plz help me out