Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
How can I know is it ok or not ? Because when I driving all value is same. If I not press pedal this value is showing. Any way to understand this ? Because my car not used 5 days and fuel was very low. After running I saw white smoke from the exhaust. This is continue 5 minutes after my fuel is full I never see same thing again. Before also I never seen.
Regards
2nd May 2015 11:23 am
btekcan
Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
Any idea ?
15th May 2015 8:28 am
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
The check is done at idle with the engine warm. It can be useful to check the reading when cold too, just to see if there is anything really weird.
The exact book figures have moved about a bit over the years and they are just a guide:
JLR - Topix wrote:
18 . Run cylinder balance test from 'live data'.
Injector balance limits are between 960 and 1.4 k.
The ideal is 1000 with anything above 1.3k up for a bit of investigation.
Probably time to drag this bit up too:
Robbie wrote:
When it comes to numbering there can also be confusion with code readers, live values and injectors. The ECM actually lists the injectors as 0 to 5, with 0=cylinder 1 and 5=cylinder 6. Cylinders 1 to 3 are also known as Bank A with 4 to 6 as Bank B. To keep a common format and to make it easier to understand some code readers list the injectors as 1 to 6.
Others list by firing order (1 - 4 - 2 - 5 - 3 - 6) which, for a RHD vehicle can make it:
- Driver’s side front cylinder, cylinder 1, injector 1
- Driver's side centre cylinder, cylinder 2, injector 3
- Driver's side rear cylinder, cylinder 3, injector 5
- Passenger side front cylinder, cylinder 4, injector 2
- Passenger side centre cylinder, cylinder 5, injector 4
- Passenger side rear cylinder, cylinder 6, injector 6
The big arrow faces the direction of forward travel:
This has confused the heck out of me at times, but then my brain is very small.
Also remember that a fault on one cylinder will influence the fuelling of the next cylinder to be fired, so it is common for the fault not to lie with the cylinder that is out of limits. Don't forget to look for leaks around the injectors and any signs of blowback too.
Steve's words on the subject:
SteveNorman wrote:
The injector adjustment figures are a result of the engine ecu measuring the speed of each contribution from that cylinder. it is clever enough to measure the speed in rpm of that cylinder, and make adjustments by adding, or taking away fuel, from each injector.
If the engine is running perfectly, then all injectors would read 1000. Which would mean no fuel was being added, or taken away.
Let's say one cylinder had a badly spraying injector, the speed of that cylinder is low, so the ecu, adds more fuel to it, to try to get that cylinder to speed up. If it has added the maximum amount of fuel (say 1500)' then it thinks, how can I make the cylinders all the same, so it reduces the fuel on the best one, to slow that one down, and get them all more even. So that cylinder may be say 700 to try to even things up.
Going back to the worst cylinder, the cause could be the injector not squirting enough fuel, or it could be that cylinder not firing it correctly, (low compression, coked valves etc), any of which would cause the problem.
Once that problem is fixed, the lower reading injectors usually increase to nearer 1000.... As it doesn't have to work so hard to even the idle speeds up.
Hopefully I have explained that adequately.
So throwing injectors at it may fix it, or may be an expensive way to diagnose the problem.
I would suggest start with a compression test, then a cylinder running balance test, then if all ok there, renew the worst injectors (reading nearest to 1500).
It's best to look at the whole picture before jumping in.
Regards
Steve
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
Hello,
unfortunately I also got into the injector-club.
I had the "no special programms available" error message on screen and the engine sounded like running on 5 cylinders. I could just go on with 30kph or so. So I plugged in the IID tool. I had a P020E error saying "Injector 5 out of limits".
After a balancing test my readings where:
I1: 993
I2: 995
I3: 1005
I4: 1008
I5: 830
I6: 1030
I could also see some moisture in the area where injector 3 and 5 are. So I decided to change the copper sealing on all injectors. I could not remove injector 6 as it did not moove at all and I did not have a puller, but I could change the sealing on all the other injectors.
Result:
Car went very strong, pick up and acceleration improved.
Readings came to:
I1: 990
I2: 1000
I3: 1010
I4: 995
I5: 905
I6: 1050
I thought everything should be fine again!
But some days later I the car felt slow again. I wanted to accelerate (full throttle) to overtake a tractor and suddenly it started to stutter - "no special programs", 30kph back on tour.
I managed to get back home using the IID Tool and by avoiding full or heavy throttle.
Again, its injector 5 thats out of the limits. I also have a new injector at home for testing.
But: where shall I start?
Injector 5? Or is it only compensating heavily?
regards...-colour coded wheel arches
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19th Aug 2015 9:31 am
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20836
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
Warm engine...
But they do not vary a lot from the cold engine readings - they seam to stay quite stable.-colour coded wheel arches
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19th Aug 2015 12:17 pm
disbelieve
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
Actual cold readings from 1 to 6:
1040
980
970
1054
913
1023
Might it have something to do with the injector cleaner in the tank?-colour coded wheel arches
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19th Aug 2015 2:38 pm
marco 110
Member Since: 15 Nov 2009
Location: SALLES 33
Posts: 1014
Dou you had only the fault code on injector ?
Perhaps you can test the live value of boost pressure too Marco.
-D4 sdv6 HSE 2012 , high beam assist , surround cam, tv , and a lot of nice stuff..
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
Yes, it was just injector 5 that produced the fault code.
I had another one some days ago from the oil temperature sensor.
I will check the boost pressure tomorrow - have to put back the rebuild compressor first.
19th Aug 2015 7:02 pm
marco 110
Member Since: 15 Nov 2009
Location: SALLES 33
Posts: 1014
Manifold absolute pressure KPa - Ranges between approximately 100kPa @ idle to 250kPa at max boost.
Marco.
-D4 sdv6 HSE 2012 , high beam assist , surround cam, tv , and a lot of nice stuff..
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
840rpm
boost pressure actuator 57.504%
fuel pressure 29100kPa
Manifold Pressure 97,2 kPa-colour coded wheel arches
-de-tangoed headlights
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20th Aug 2015 3:33 pm
disbelieve
Member Since: 14 Jan 2014
Location: Lower Austria
Posts: 46
Hello,
I really gonna need your help with this one.
I have changed injector 5 by now and all readings are close to 1000. (from 950 to 1080)
But the problem is still there. The engine runs perfect when it is standing on the drive. Its even good on full throttle. But as soon as I want to drive the car and accelerate it harder it will start to sound weared and i can only go 30kph.
The IID tool doesn't find a failure, but it will delete it on "delete all". The engine starts to behave normal again afterwards. The BAS-tool says code P0205.
Does anybody know what to do???????-colour coded wheel arches
-de-tangoed headlights
-D4 Bluetooth Module
-FBH on 3rd Button
-EGR Off on MY2007
-Remap
Injector 5 open circuit - wiring issue is a possible cause.Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500
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