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  1. #1
    SpongeBob Foamypants
    Back in my R for the 3rd
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    foammanmark's Avatar
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    My R's throwing the P0172 code so further investigations to start.....

    Can go upto 800/1,000 miles before coming on but has suddenly become less miles this week. Car seems to drive OK to me, but I would like someone else to have a drive and see what they think. Anyone in Lancs give me a shout please and you can take a test drive.............

    Replaced lots of vac lines already but still a few to check/replace, so hopefully I'll come across something iffy. Checked intercooler piping, and going to clean the MAF sensor as a precaution. Any other simple checks that I should be doing please?

    MOT is Jan when she goes to my local Volvo indy, so he can take a look if I haven't cured her by then.

  2. #2
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    228k and still not broke it!

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    Try cleaning the maf (or swap for a working one).
    Also, check the one-way valves as they can cause running issues.
    19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...

    310.2bhp / 333ft/lb

    2016 Swedish Day UK "Best Modified Swede"

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    foammanmark (Friday 10th November 2017)

  4. #3
    SpongeBob Foamypants
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    MAF is off the car for the night to dry properly after using that CRC stuff. cleaned the whole thing inside very carefully, and some serious dirt removed.

    I have a big Ramair foam cone on her and I presume that came pre-oiled but I haven't added any to it yet.

  5. #4
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    Don't oil it mate.
    If anything, put it in the dishwasher and clean it.

    Cone filters can cause maf issues as they let more particulates in.
    19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...

    310.2bhp / 333ft/lb

    2016 Swedish Day UK "Best Modified Swede"

  6. #5
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    P0172 Long-term fuel trim Lower limit

    to points towards a leak somewhere or faulty lambda
    P1 V70 2.5T Scorpion Exhaust, 3" downpipe 100cel cat, BSR induction, KKK24, GWE 3" Maf to turbo pipe,japanifold , 2010 V50 T5 Alloys Projector Headlamps with 5k Hid kit Quickshift kit, strut brace, Koni Yellow Sport,IPD BCS AET motorsport remap
    Previous: 2004 XC90 T6, 240GLT Estate, 343DL
    Toys: Capri 3.7 Twin turbo, Kawasaki ZX10R 2006,

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    foammanmark (Sunday 12th November 2017)

  8. #6
    SpongeBob Foamypants
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    Quote Originally Posted by deathrider311271 View Post
    P0172 Long-term fuel trim Lower limit

    to points towards a leak somewhere or faulty lambda
    Cheers for the above Simon. I really can't find a leak and have done a thorough check. Ordered a silicone coupler hose for the inlet pipe to top of the turbo as a precaution, and I've been looking at that rubber elbow near the power steering pump, which looks pretty good tbh.

    Using her again this week(cos I'm becoming addicted again), and I'll see how she goes.

  9. #7
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    Still more fettling needed,
    will it never end?
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    Check the little elbow that comes out of the inlet manifold, mine had split, you'll find it between the inlet tracts of cylinders 2 and 3 on the manifold.

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    foammanmark (Sunday 12th November 2017)

  11. #8
    SpongeBob Foamypants
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    Will do cos that's one that I haven't checked.

  12. #9
    SpongeBob Foamypants
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    OK, so 200 miles since re-fitting the cleaned MAF, and she's a different car tbh. Pulling much better, and a lot smoother.

    Only other thing I did was tighten a Mikalor clamp on that rubber coupler hose that I mentioned earlier in the thread. Thought I saw slight bubbling from around the top clamp when a shower came whilst the bonnet was up and water got to that area.

  13. #10
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    Quote Originally Posted by foammanmark View Post
    OK, so 200 miles since re-fitting the cleaned MAF, and she's a different car tbh. Pulling much better, and a lot smoother.

    Only other thing I did was tighten a Mikalor clamp on that rubber coupler hose that I mentioned earlier in the thread. Thought I saw slight bubbling from around the top clamp when a shower came whilst the bonnet was up and water got to that area.
    hopefully sorted buddy
    P1 V70 2.5T Scorpion Exhaust, 3" downpipe 100cel cat, BSR induction, KKK24, GWE 3" Maf to turbo pipe,japanifold , 2010 V50 T5 Alloys Projector Headlamps with 5k Hid kit Quickshift kit, strut brace, Koni Yellow Sport,IPD BCS AET motorsport remap
    Previous: 2004 XC90 T6, 240GLT Estate, 343DL
    Toys: Capri 3.7 Twin turbo, Kawasaki ZX10R 2006,

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    foammanmark (Thursday 16th November 2017)

  15. #11
    SpongeBob Foamypants
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    Quote Originally Posted by deathrider311271 View Post
    hopefully sorted buddy
    Hopefully, and if the lambda light stays out........very happy days. Keep you posted.


 

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