Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
Just had a simular issue on a D4 turned out to be a cracked inlet manifold, didnt show up on a smoke test but i found it by spaying brake cleaner on to it. On tick over with no boost it got sucked in and made the engine note change.
10th Oct 2020 6:22 pm
Fatty100lb
Member Since: 23 Aug 2020
Location: Norwich
Posts: 13
This was my first thought has been checked thoroughly.. might try that though
10th Oct 2020 6:31 pm
Fatty100lb
Member Since: 23 Aug 2020
Location: Norwich
Posts: 13
I can safely say after my mate came and looked at it it is not the problem. And after blocking the airway it would appear there is no leak in the system at all. So why the codes😔😔😔
18th Oct 2020 3:22 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4628
The codes are present because either you still have a leak or obstruction on the induction side or faulty turbo.
The intercooler can split along its seam, this might only be visible when the system is under pressure. The other possibility is an internally collapsing hose blocking air flow. It might be worth going over everything again, starting with the air filter and working through each component in the system.yµ (idµ - eAµ) ψ=mψ
18th Oct 2020 3:46 pm
Fatty100lb
Member Since: 23 Aug 2020
Location: Norwich
Posts: 13
Turbo has been replaced and I blocked the airfilter side it sucked all hoses in and no squeels with it trying to get air from any holes then the inevitable shut down of the engine due to oxygen starvation intercooler got pressure tested and held 4 bar of pressure I believe possibly higher
18th Oct 2020 7:08 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4628
Try unplugging the MAF sensor and see how it runs then!yµ (idµ - eAµ) ψ=mψ
18th Oct 2020 7:18 pm
Fatty100lb
Member Since: 23 Aug 2020
Location: Norwich
Posts: 13
Before I had the ECU updated to the latest patch when I unplugged the MAF sensor she used to drive perfectly no smoke and tons of poke since I have it updated it runs exacly the same with it unplugged not sure what that's all about but that's how it is..
18th Oct 2020 7:55 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4628
Can you provide the following "live data" from your iCarsoft? Your previously posted videos were difficult to read due to movement and some anomalies. eg Manifold air temp 0.06 Mpa
Pressure cntrl valve %
Volume control valve %
Throttle pedal angle %
Pedal sensor 1 voltage v
Pedal sensor 2 voltage v
Mass air flow sensor signal g/s
Intake air temp C
Boost pressure actuator Bank 1 %
Boost pressure adjustment %
Fuel pressure Mpa
Engine speed rpm
Eng oil temp C
Coolant temp C
Cylinder balance offset:
Inj 1. Inj 2. Inj 3. Inj 4. Inj 5. Inj 6.
Ambient temp C
Battery voltage v
Boost air temp Cyµ (idµ - eAµ) ψ=mψ
18th Oct 2020 11:33 pm
Fatty100lb
Member Since: 23 Aug 2020
Location: Norwich
Posts: 13
Ok the first lot are before I took it for a run the second lot are after I got it up to temp ..
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