fail smog check

Q7 3.6L P0174 Fixed

| February 15, 2026 | 10 views
P0174 code

My Q7 is 18 year old and with 88k miles. This year my Q7 needs a smog certificate before it can be registered to drive in CA. It’s been sitting outside for a long time, I had P0174 Bank 2 Fuel Trim too lean popped up, also P0456 Evap has small leak. The gas mileage …

Replace Valve Cover Gasket A6 Avant 2.8L

| November 16, 2012 | 5,984 views
Audi A6 2.8L V6

Our faithful 96 A6 Avant 2.8L failed smog check, not because of the Smog limits, but because of the oil burning smokes and blue smoke coming from the engine bay and the exhaust pipe. The smog technician insisted that the smokes come from the engine bay is the crank case leaks, although we could see …