Question about Mazda CX-7

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My check engine light on code p0016 on 2007 mazda cx7 turbo 2.3

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Crankshaft position sensor or camshaft position sensor.

Have to replace 1 or both.
My check engine light on code p0016 on 2007 mazda  - 10_26_2013_7_21_50_pm.jpg

Posted on Oct 26, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 124 Answers

SOURCE: code po234 overboost condition 2002 jetta tdi

Don't know much about VW but if it's fine, and it doesn't happen again I wouldn't worry about it. If it does try resetting the ECU by removing the battery terminals and touching the positive lead(red wire) to the negative battery post. It might spark a little, this is just the capacitors discharging, resetting your ECU and starting over. It's like restarting your personal computer

Posted on Mar 21, 2009

Hrnsly
  • 154 Answers

SOURCE: Timing chain broke on a 2007 cx7 w 65K miles

you need to take it to your local dealer and raise a big fuss because this is a known problem and if you yell loud enough you should be able to get this fixed under warranty.

Posted on Aug 12, 2009

  • 55 Answers

SOURCE: 01 Mazda Millenia 2.5L check engine light

sounds like its a different sensor causing problem. could be TPS SENSOR OR MAP SENSOR .

Posted on Dec 06, 2009

CaptainKeyz
  • 202 Answers

SOURCE: have this code PO171, what does this mean.

Not sure that the O2 sensor was bad. It sounds like it was telling you that side of the exhaust system was picking up a lean mixure at the O2 sensor. The O2 sensor was doing its job by telling you the mixture changed. If the O2 sensor was bad, it would say low voltage range for that sensor, or open curcuit.
Now the car has had time to do its diagnostic sweep, it is telling you the same thing, but from a different sensor...the fuel mix is too lean. Air/spark/and fuel is what you need in the correct amounts. In your car, the ECM engine control module controls this by taking readings from all the sensors several hundred times a second.
Mechanically, you have a few options. Change the fuel filter...under the car on the passenger side. It is an easy job.
Change the fuel pressure regulator. This keeps the fuel at 4 BAR so the fuel injectors can do their job correctly. This job just needs a screw driver to pop off the clip that holds it in place. No hoses need to be removed. It is on top of the intake manifold, in-line with a metal fuel line and a rubber one.
The fuel injectors could be clogged up on one side of the engine. Run some fuel injector cleaner through a tank of gas. Also, listen for a constant ticking sound at each injector. If one sounds off PAR, then replace it.
The fuel pump may not be giving you enough power. However, the readings seem to be localized to one side, so I doubt it.
Start with the easiest thing, and see if it works. Also, you will need to get yourself a VAG scan tool. It is the only one with codes in it for all of your VW systems, not just engine codes like the ODB scanners. You can get a nice one for $50 on-line.
Good Luck!

Posted on Feb 24, 2010

  • 2 Answers

SOURCE: My Mazda CX7 2008 had

We just had the same problem in Dec 2010. Purchased ours new Feb 2008. Mazda is aware of the issue. They will not fix it if it is out of warranty, but we have been going to the same dealer for service so they offered to pay for the part (EGR @ $450) if we payed for the labor @ $350. We had several problems with the vehicle, from the turbo failing to motor mounts failing to scraping brakes to rattles that would not go away. The problem is the turbo engine is not burning the fuel well enough so the carbon is coming back into the system past the EGR and clogging the system up. Not sure if it's an ethenol fuel related issue or octane issue. Too much unreliable technology. We sold ours the day after we fixed the EGR issue (w/ 50k miles). It was fixed and running fine, so we didn't feel guilty about passing it on. Just kept reading about needing to save for a new engine around 80k miles b/c of clogged engine valves. We went back to Honda...

Posted on Jan 13, 2011

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2 Answers

2011 mazda cx7 turbo spark plug #3 miss fire. why does the motor have to be replaced or rebuilt?


Motor has to be replaced or rebuild in case you have low pressure in one of its cylinders. Is that your case?

May 28, 2017 | Mazda Cars & Trucks

1 Answer

I have a 2007 Mazda CX7, Yesterday I got in my car to go to work & the check engine light came on. Now the car is just chugging along.


It could be a multitude of problems. You can probably try spark plugs and air filter (probably wouldn't hurt if you haven't changed them for a while), but you may still need to take it for service. Sometimes you can take it to an auto parts store (NAPA, O'Reilly, etc) or auto service center and they will check it with their computer.

...

Aug 05, 2016 | Mazda CX7 Cars & Trucks

1 Answer

Hey I have a fault code P0171 on my mazda cx7 any ideas as im 2hrs away from my mazda dealer cheers


I suggest you read this.....................

http://engine-codes.com/p0171_mazda.html

Feb 28, 2015 | Mazda Cars & Trucks

1 Answer

Do mazda cx7 year 2009 have problems with the turbo? I think mine may have gone then is a whearing noise whislt excelerating?


While turbo spooling is normal, there can be an access amount if the bearing is bad, do not know if Mazda has this problem but i know it runs rampant in most turbo cars that spend a lot of time driving in the 3500-4200 RPM range.

Jun 26, 2011 | 2009 Mazda CX-7

1 Answer

My Mazda CX7 2008 had the check engine light come on. I had it scanned and the code was P0401 and stated it was the ERG valve. Is there a recall on this problem or part?


We just had the same problem in Dec 2010. Purchased ours new Feb 2008. Mazda is aware of the issue. They will not fix it if it is out of warranty, but we have been going to the same dealer for service so they offered to pay for the part (EGR @ $450) if we payed for the labor @ $350. We had several problems with the vehicle, from the turbo failing to motor mounts failing to scraping brakes to rattles that would not go away. The problem is the turbo engine is not burning the fuel well enough so the carbon is coming back into the system past the EGR and clogging the system up. Not sure if it's an ethenol fuel related issue or octane issue. Too much unreliable technology. We sold ours the day after we fixed the EGR issue (w/ 50k miles). It was fixed and running fine, so we didn't feel guilty about passing it on. Just kept reading about needing to save for a new engine around 80k miles b/c of clogged engine valves. We went back to Honda...

Dec 17, 2010 | 2007 Mazda CX-7 Grand Touring

1 Answer

I need to replace the turbo on my mazda cx7 i cannot find a manual, how do i take the turbo off


Can i take Turbo off Madza CR-7 and bypass it with something else that would work. Have put 5 Turbos on Car in last 6 months two differant Machanics. last ont went 6 miles and it went bad. what is the problem?

Mar 02, 2010 | 2007 Mazda CX-7 Grand Touring

3 Answers

Timing chain broke on a 2007 cx7 w 65K miles


you need to take it to your local dealer and raise a big fuss because this is a known problem and if you yell loud enough you should be able to get this fixed under warranty.

Aug 03, 2009 | 2007 Mazda CX-7 Grand Touring

8 Answers

Mazda cx7 engine noise


Does the engine have hydraulic lifters? If so air can get into the chamber under the lifter and cause lifter noise.

Diagnosis and repair requires removing the Valve Cover. A fairly easy job for your local shop.

Jun 15, 2008 | 2007 Mazda CX-7 Grand Touring

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