Member Since: 24 Jan 2010
Location: West kent
Posts: 8531
steve
speak to steve at advanced factors he will let you know how his is
11th Nov 2015 8:32 pm
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464
Will do, Geoff
Hope it's good news (for his and mine)!
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11th Nov 2015 8:50 pm
geoff.
Member Since: 24 Jan 2010
Location: West kent
Posts: 8531
good news for him but not to sure about you
11th Nov 2015 8:52 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20866
Woolmeister wrote:
My question was more, "What is the worst that could happen if I leave this fault to develop noticeable symptoms?". I've heard horror stories of holes being blown in pistons due to increased combustion temperatures caused by over-fuelling.
I'm quite prepared to leave it and see how it develops whilst I have no noticeable symptoms. Am I risking further damage to anything in the meantime?
Steve
Poor spray pattern may lead to "hot spots" burning onto the piston
Incomplete combustion is compensated by the PCM adding more fuel, which raises combustion temps again
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464
Current status:
Click image to enlarge
Click image to enlarge
So, the ~1390 readings seem very intermittent. Nevertheless, I've got two injectors - 3 and 4 - that are reading high.
If you refer back to my original post at the top of this thread, Injector 6 was the one that was reading highest.
This, is why I'm reluctant to start changing injectors...
Steve2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
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2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!
12th Nov 2015 8:17 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8247
Two things you are missing on your test are engine temperature and RPM, add them to your Iid tool test screen, you may find after the engine has reach normal operating temperature and higher RPM the injectors are operating within spec It can when others can't,
It will when others won't,
It goes where others don't.
12th Nov 2015 8:38 am
MarkOne
Member Since: 23 Jul 2011
Location: County Antrim
Posts: 3345
RPM will be at idle with those figures.
12th Nov 2015 8:41 am
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464
Engine temperature was cold (had been parked for about 6 hours) and RPM was indeed idling (you can't read these values unless idling) so I guess around ~780 RPM.
I'll take another reading later on when it's up to temperature.
Steve2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
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2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!
12th Nov 2015 8:48 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8247
I am sure when I had a play with my tool I got readings at around 2000rpm! and they balanced out, unless there is a default on the Iid tool when rpm is increased.It can when others can't,
It will when others won't,
It goes where others don't.
12th Nov 2015 9:00 am
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464
Yes, you will, but they won't ever move.
When idling, you will find that the values fluctuate quite a bit. When you put your foot down, you will probably find that they all settle at something like 999.000.
Steve2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!
12th Nov 2015 9:03 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8247
Yes, ISTR that's what I was getting, thought the old girl was doing well It can when others can't,
It will when others won't,
It goes where others don't.
12th Nov 2015 9:06 am
Nubber99
Member Since: 13 Apr 2014
Location: Poole
Posts: 289
This was mine. I had the two highest replaced, and now they are all back to 980 - 1050.
[/img]
13th Nov 2015 8:04 am
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464
Thanks, Nubber99.
I've been keeping an eye on this over the last week or so. A few more screen captures of what my IIDTool is telling me...
Reading on Friday:
Click image to enlarge
Readings Today (when I arrived at work and when I got home from work):
Click image to enlarge
Click image to enlarge
In all three cases, the car was up to temperature and had just completed a ~40 mile trip on Motorways, A roads and B roads.
I'm inclined to think I need to replace 3, 4, and 6 at the moment, unless anybody else thinks otherwise?
Steve2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
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17th Nov 2015 9:05 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20866
3,4 and 6 do look very iffy
Though if the readings of one 3 are fluctuating as much as that, I'd be prepared to replace all 6
But, you never know My D3 Build Thread
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8247
Will these readings be different on an engine that has a remap?
As can be seen in the photos injector 4 that I am about to change is consistently high, but relating it to which one it is on the car is very technical.
One for PatGap; it would be much easier to relate the readings to the engine if the display order on the Iid tool was relevant to standing in front of the car, as they they are I find it very confusing for an amateur.
Click image to enlarge
Click image to enlarge
It can when others can't,
It will when others won't,
It goes where others don't.
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I got readings at around 2000rpm! and they balanced out, unless there is a default on the Iid tool when rpm is increased.
