Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284
Possible Injector issue?
My D3 has been feeling slightly rough and less powerful recently, almost like it's misfiring a little. So after reading some Injector posts I went and had a look at my live values.
How do they look?
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21st Dec 2015 3:04 pm
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3457
Ideally, you need to get the car up to normal operating temperature. 66 °C is not (fully) up to temperature.
Do you have any injector specific codes logged in the Engine ECU?
Injector 1 looks suspect to me. I have a couple of injectors with similar values but the car still runs fine. I may replace them in the New Year.
Be warned that once you start replacing injectors, the problem can sometimes move to another cylinder until you have eventually replaced all 6. At ~£180 a pop, replacing one injector suddenly becomes an expensive hobby.
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!
21st Dec 2015 3:42 pm
Barn1e D3 Decade
Member Since: 28 Aug 2006
Location: Mid-sussex
Posts: 2021
Iceman, you do know that the more you look for problems that the more you will find Injectors could turn out to be an expensive one 2005, TDV6 S, Auto, 190k miles, owned from new, V8 Brake Upgrade, Nancom Evo, RLD protector, BAS EGR blanking & Remap, separate ATF cooler, changing all the fluids ahead of time.
21st Dec 2015 7:54 pm
Iceman08
Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284
I know
All of a sudden a few strange things are going on and it's massively bugging me, I'm just trying to break them down bit by bit!
I had a rubbing sound this evening so I think one of the brakes is sticking on, may explain some juddering and loss of power!
21st Dec 2015 10:48 pm
Iceman08
Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284
Woolmeister wrote:
Ideally, you need to get the car up to normal operating temperature. 66 °C is not (fully) up to temperature.
Do you have any injector specific codes logged in the Engine ECU?
Injector 1 looks suspect to me. I have a couple of injectors with similar values but the car still runs fine. I may replace them in the New Year.
Be warned that once you start replacing injectors, the problem can sometimes move to another cylinder until you have eventually replaced all 6. At ~£180 a pop, replacing one injector suddenly becomes an expensive hobby.
Steve
No codes logged regarding this, just running slightly rough and fuel economy is awful
Here are the readings when fully up to temperature
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21st Dec 2015 10:51 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Im sure in a previous thread Disco Mikey said once they are at or over 1.3k they are on their way out.
22nd Dec 2015 7:30 am
Barn1e D3 Decade
Member Since: 28 Aug 2006
Location: Mid-sussex
Posts: 2021
Iceman, here are my values from August and recent:
August 960/930/1030/1045/1100/905
Now 920/922/1045/1103/1120/960
My D3 has done 165000 miles
Yes you have one low value I am not sure I would do anything at this stage, as others have said, values up to 1300 are ok although I am not sure how low they could go.2005, TDV6 S, Auto, 190k miles, owned from new, V8 Brake Upgrade, Nancom Evo, RLD protector, BAS EGR blanking & Remap, separate ATF cooler, changing all the fluids ahead of time.
22nd Dec 2015 8:12 am
Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3457
As already said, I would leave well alone unless your car is actually misfiring, producing excessive smoke, etc...
Until you start getting fault codes suggesting that the fuel trim is at maximum limit/injector restricted I'm not totally convinced by starting a replacement program at this stage.
Go by what your car is telling you, not what your IIDTool is telling you.
Yes, fuel economy is pretty awful. Deal with it.
Injector replacement can get seriously expensive, especially when you swap one out and find you can't drive the car because the problem has moved to another injector and got even worse than it was before. Break a leak off pipe and you're looking at another £100 to replace that!
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!
22nd Dec 2015 9:04 am
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
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Injectors could turn out to be an expensive one 
