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Old 10-04-2010, 03:59 PM   #1
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Exclamation p0175

why i didnt pass my emissions test. anyone know what might be wrong and more importently how much to get it fixed
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Old 10-04-2010, 04:07 PM   #2
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Re: p0175

Does the car drive fine? Might just be a faulty o2 sensor on bank 2.

Try cleaning the MAF as well
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Old 10-04-2010, 05:17 PM   #3
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Re: p0175

P0175 - System to Rich (Bank 2)

Symptoms:
You will more than likely not notice any drivability problems, although there may be symptoms such as a misfire.

Causes: A code P0175 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled
  • There could be a vacuum leak.
  • There could be a fuel pressure or delivery problem - ie Idle Air Control Valve/Throttle Position Sensor/Fuel Pressure Regulator and/or others

Possible Solutions include:
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect fuel lines for cracks, leaks, or pinches
  • Check the fuel pressure at the fuel rail
  • Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced.
  • Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)
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Old 10-04-2010, 05:20 PM   #4
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Re: p0175

Clean the MAF with electrical cleaner.
Use Seafoam to flush the fuel/induction system by pouring into the vacuum line (from the intake to the brake booster).
Clean your throttle body.

Clear the code then drive to see if the issue returns.
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Old 10-04-2010, 08:38 PM   #5
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Re: p0175

yea it drives fine besides a few issues all cars with alot of miles would have. this jumped me and im pissed off because i have little money and what i did have i planned on spending on fun stuff like exhaust.
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Old 10-04-2010, 08:40 PM   #6
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Re: p0175

what cost am i looking at because i want to do it somewhere certified
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Old 10-05-2010, 08:24 AM   #7
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Re: p0175

This is all steps you can do yourself. I wouldn't pay anyone to do this. Go to autozone and buy electrical cleaner, Seafoam, and Brake Cleaner.

Remove the MAF and clean with electrical cleaner inside it where it reads.

Remove the throttle body and clean with brake cleaner really well.

Find the vacuum hose from the brake booster to the intake and pour seafoam into the intake while running.
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Old 10-06-2010, 08:58 PM   #8
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Re: p0175

haha i know this guy who can make my car pass if i take it within like two hours of him doing something to it. is that shady?
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Old 10-06-2010, 09:42 PM   #9
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Re: p0175

Quote:
Originally Posted by i<3ford View Post
haha i know this guy who can make my car pass if i take it within like two hours of him doing something to it. is that shady?
They do it all the time, a friend of mine slipped the guy a 50 and passed without cats or egr on his car. But I do believe it is a federal offense but I could be wrong.
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Old 10-06-2010, 10:29 PM   #10
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Re: p0175

I am a Louisiana State Certified inspector... That's Illegal!! But I know some people let things slide by when the color green appears
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Old 11-03-2010, 10:28 AM   #11
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Re: p0175

hooray it was only a o2 sensor!!!
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Old 11-03-2010, 06:25 PM   #12
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Re: p0175

still runnin rich though. o well.
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Old 11-03-2010, 07:08 PM   #13
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Re: p0175

Quote:
Originally Posted by SaleenFiend View Post
Clean the MAF with electrical cleaner.
Use Seafoam to flush the fuel/induction system by pouring into the vacuum line (from the intake to the brake booster).
Clean your throttle body.

Clear the code then drive to see if the issue returns.
Perform this yourself. Its needed routinely. It can make a huge difference and it sounds like you would benefit from it. Seafoam-$8.00 Dip your MAF electrode into a cap of alcohol until clean.
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