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Francisco Asencio Posted on Apr 02, 2013

Freelander 2002 code p171

I have a Freelander 2002 and I have several codes P174, P171, P1471,P1472,P1475 , P1477 and is runnig rough

1 Answer

A

Anonymous

Google the Codes

That is how you find out
& learn things

2 Related Answers

Anonymous

  • 3301 Answers
  • Posted on Jun 11, 2011

SOURCE: i have a 97 grand

  • In the vast majority of cases, simply cleaning the MAF sensor does the trick. 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 all vacuum and PCV hoses, replace if necessary
  • Check for a dirty fuel filter and proper fuel pressure
  • also check the air filter, and any vacuum leaks downstream of the MAF sensor

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Anonymous

  • 335 Answers
  • Posted on Mar 20, 2011

SOURCE: I own a 2000 mercury grand marquis. Check engine

you have an oxygen sensor that needs to be replaced.

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Code 1475 1471 1477 1472 and wont start sonetimes

This should give you some problems to look up:

P1471 EVAP Emission Control LDP Circuit Short to B+

Possible failuer of OBD II Fault code P1472

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P1472 EVAP Emission Control LDP Circuit Short to Ground
P1475 EVAP Emission Control LDP Circuit Malfunction/Signal Circuit Open
P1477 EVAP Emission Control LDP Circuit Malfunction
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Landrover OBD P1472

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P507

You have a lean fuel condition.I would check the fuel pressure and if its not within the specs i would change the fuel filter and fuel pump.
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My 04 freelander is showing codes p1133, p1472, p0304, p1471, p1477, p1775, p1319, p300 and p0050. along with this my vehical has very limited torque and throtal responce through out the entire power band.

When you get that many codes and the drivability issues as well,you most likely have a single item pulling down the computer,so to speak.
You need, as you have done, list what the codes are,possible fixes,based on a trouble chart ,you won't have.
Then you need to do three things.
Have a complete vehicle wiring schematic.
Check what does work
Use logic, and do a few tests of suspected areas, if you don't get what you should,you enter the schematic and work your way back to find out why.

In your case,a very good diagnostic repair shop will be what you want.
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