Tampered-With Vehicle

Auto Care Advice

• failed smog test, check engine light.
  failed smog test due to code po 401, had all parts repalaced to fix problem. passed all smog pa...

  Q&A > Ford > 1997 Ford E-150

• erratic guages/failed smog
  I have an issue as my 2005 mustang. It failed smog today with the PO4063 error. I have had a check engine light on for a couple of months, the fuel guage and the speedometer guage are both erratic ...

  Q&A > Ford > 2005 Ford Mustang

• Oxygen sensor failed smog check
  My oxygen sensor and catalyst are not running on the monitors resulting in failed smog check. If I install a new oxygen sensor will it pass on the monitor? I heard it still might no...

  Q&A > Hyundai > 2002 Hyundai Sonata

• my 1993 honda accord fail smog to much nox
  what repair is needed to correct this problem

  Q&A > Honda > 1993 Honda Accord

• Failed SMOG due to HC level at 25 mph.
  it failed smog with high HC at 25mph(57 vs. 62). at 15 mph it'a at max at 92. Changed oil, pvc valve, cap n r...

  Q&A > Nissan > 1995 Nissan Sentra