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jjames
Member Since: 25 May 2013
Location: Pr6 8su
Posts: 27
  
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| "Air flow rate bank 1 or bank 2" Which sensor?? |
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I'm still having problems with my 3.0 sdv6 in restricted performance mode. :?
I was almost fully convinced that it was a faulty throttle housing, throttle mechanism because the engine runs on when switched off and after some reading it seems that one of the purposes of the throttle on these modern diesel engines is to help with a smooth shut-down. After getting a bargain from Germany for a nearly new throttle body from Tornau Motoren it still has the same problems.
I'm getting a P0488 code with my carsoft reader but as I delve further into the readings, I'm getting different figures for 'air flow rate bank 1' and 'air flow rate bank 2' . From memory, one read 18g/s and the other 0g/s. Are the O2 sensors providing these readings?
Thanks in advance.
I will crack this!
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 26th Jul 2019 10:38 am |
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jjames
Member Since: 25 May 2013
Location: Pr6 8su
Posts: 27
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Any ideas anyone??
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| 26th Jul 2019 3:03 pm |
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Theorangebandit
Member Since: 01 Aug 2018
Location: Suffolk
Posts: 47
 
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Your code suggest the egr is detecting a fault. If your egr has an issue it will cause differences in the o2 sensors. I believe from memory bank 1is N/S and bank 2is O/S, might be wrong.
It's likely you have a sticky valve on the egr be worth looking for mechanical fault
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| 26th Jul 2019 8:13 pm |
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Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 873
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Un plug one of the egr electronic plugs turn ignition to one then read the fault codes take a screen shot then clear and see what bank comes up with a different code. You then know what’s what Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
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| 26th Jul 2019 9:13 pm |
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jjames
Member Since: 25 May 2013
Location: Pr6 8su
Posts: 27
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Thanks guys. Is it possible to unstick the valve without removing it from the car and is it a pig of a job to remove it if necessary? I can find instructions for the 2.7 engine but not for the 3.0 which seems to have a different design. Cheers.
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| 26th Jul 2019 10:07 pm |
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jjames
Member Since: 25 May 2013
Location: Pr6 8su
Posts: 27
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Thank you Weyboat. That's great. It looks like a....long job!
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| 27th Jul 2019 6:42 am |
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Moo
D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14437
 
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I had the same codes about two weeks ago. Turned out to be a cracked in let manifold. Its a known fault. D4 HSE EU6 (Known as Jeeves)
New Defender L663 110 SE (known as Noddy!) Sold
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner 
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
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| 27th Jul 2019 7:01 am |
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jjames
Member Since: 25 May 2013
Location: Pr6 8su
Posts: 27
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Solved!
Thanks for all the forum help. I've solved my restricted performance problem. I had the error code P0488 and the answer was to change the throttle body as I'd thought. However having done this I hadn't realised that I needed to programme the new throttle body to the vehicle! Who knew?
So, with my trusty £130 icarsoft code reader I managed to reprogramme the 'electronic throttle control', wipe the error code and hey presto - no limp mode! Who says you need to spend a fortune on the iid tool!
Thanks again for all advice given.
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| 9th Aug 2019 2:35 pm |
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