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KrisC
Member Since: 19 Jan 2018
Location: Ayrshire
Posts: 85
  
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2011 D4 HSE
A couple of weeks ago, I had the EML light on and restricted performance and the codes found were for the MAF B, so swapped them over to ensure it was just that one unit, and ended up changing the one sensor. Cleared codes and all is good.
Couple of days later and restricted performance light again, No EML this time, codes now say the P006a correlation thing.
Live test the MAFs and one reads too high and the other too low, wait a few mins and the engine note changes and both readings go normal until I press the throttle and then we get silly readings again. I've been told on Facebook that this is normal behavior and and that I should do a boost check and also that the air feed switchover valve gets sticky. (Not sure where to look for this)
Did a smoke test and all is OK there too, and the pal who did it suggests the EGR is at fault although there's no codes displayed for such. He reset them and we did a live test drive, car drove lovely.
Now yesterday the car failed to start, after about ten attempts it fired but seemed a little rough, was ok after warming up. Next trip it failed to start altogether and recovery got it going with easystart. He suggested a fuel pump issue but live checking the data says pressure is ok.
My mate still says he thinks the EGR is stuck open and FUBAR'd.
I bow to your collective knowledge and welcome your input on this issue and purchase options and locations on EGR's
Cheers
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 14th Dec 2020 10:50 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10855
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Quote:yesterday the car failed to start
What was the temperature - did the FBH ignite?
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 14th Dec 2020 11:00 am |
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KrisC
Member Since: 19 Jan 2018
Location: Ayrshire
Posts: 85
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Weather temp? about 5 degrees, and very wet (Scottish, lol)
Didn't notice FBH, doesn't the car need to be running for that ?
When it was running, I didn't look, was trying to get home, lol
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| 14th Dec 2020 11:12 am |
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KrisC
Member Since: 19 Jan 2018
Location: Ayrshire
Posts: 85
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So I picked up and fitted some EGR blanks but before we did the remap the car continued to intermittently start so we ruled out the EGR and removed the blanks.
Smoke tested again, and nothing visible, live readings show fuel pressure ok, MAP sensor cleaned, MAF's all reading OK.
I've got it booked in to a indy but its weeks away, and the more clues I can gather beforehand the better.
Cheers
Kris
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| 16th Dec 2020 10:05 am |
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Oswiperus
D3 Decade
Member Since: 02 Apr 2010
Location: Chelmsford, Essex
Posts: 1600
 
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If you are using IID tool, have you clicked Advanced then pending faults. On my D4 when I had an issue there were no faults showing however after checking on the forum I was advised to go to Advanced then Pending faults and hay presto I found a relevant fault code. Stu
2016 D4 Landmark current
2022 Defender D300 SE Gone 
D4 2014 XS Commercial - Gone
D4 2016 hse lux montalcino red - Gone
D3 2005 se java black - current
D3 2005 base manual - gone
D2 1999 TD5 E white - current
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| 16th Dec 2020 4:14 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6778
 
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Apologies, somehow I posted this here instead of the funny picture thread 
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| 16th Dec 2020 8:10 pm |
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KrisC
Member Since: 19 Jan 2018
Location: Ayrshire
Posts: 85
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I don't have yet a IID tool, I was using a Bosch KTS650 and also a Autel 806 and there was nothing listed on them
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| 18th Dec 2020 9:44 am |
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