Hello, I’m a bit perplexed, which is the reason that the engine warning light of my V70-1 with B5244S2 engine (EZ 1999, model year 2000) lights up again and again. The funny thing is that the driving behaviour is normal, the idle speed around 850U/min and nothing else really disturbing. I can read the following errors: P0171 and P1672. When I delete the error memory, the indicator light is again for a time. p1672 is described quite cryptically as “5 volt output low”. There is also no “one driving situation at which it is concerned again. Since the throttle valve was already overtaken by ecu.com in 2017, I exclude it. I suspected the LMM, but with a test of 850-2250 revolutions as graph it does not deliver any funny rashes, but increases quite linearly. However: At idle at 850 revolutions, according to the diagnostic device, only a flow rate of 2.45g/s – which would be less than 9kg/h. I mean to have read that it is 14kg/h s My next points would be: Swap the throttle flap seal in order to eliminate false air at the place and clean the solenoid valve for camshaft control and install it again with a new seal. Both can certainly not hurt, but feels like fishing in the pit because it is more likely to help. Has someone perhaps had something similar and a tip for me before I exchange pieces indiscriminately?