I think the inj deviation time refers to the speed the injector responds to the command from the ECU to open. So it might show up an injector that is getting tired electrically. For comparison the inj deviation my 5 cyl AXE (120k) has these figures:

Cyl 1 -65.0
Cyl 2 -58.0
Cyl 3 -49.0
Cyl 4 -66.0
Cyl 5 -58.0

The idle stabilization adds adds/subtracts fuel to individual cylinders to smooth out the idle. It's not especially for testing the injectors but it does show up poor ones. The only trouble is others faults like low compression or a worn cam lobe on a particular cylinder will do the same.

The idle stabilization on mine has these figures:
Cyl 1 -0.07 mg/str,Inj.
Cyl 2 -0.71 mg/str,Inj.
Cyl 3 -0.54 mg/str,Inj.
Cyl 4 -0.09 mg/str,Inj.
Cyl 5 0.16 mg/str,Inj.

I think if you are going to the effort of removing them it's worth getting them tested and cleaned. Although you could try a tin of injector cleaner in a new filter and see if it improves.






13,0.07 mg/str,Inj. Quantity,-0.71 mg/str,Inj. Quantity,0.54 mg/str,Inj. Quantity,-0.09 mg/str,Inj. Quantity,
14,0.16 mg/str,Inj. Quantity,

 

Thanks @T5 TDI think you are right might as well get them tested/cleaned . Thanks for your figures..interesting to see some other results!

 

From my understanding your numbers all look in spec (not over 3.0), but the nozzles can still be past their best after 100k.

 

@Plateletboy Thankyou

 

I think he is worried about the -5 on the injector deviation PB. It does stand out against the others and he says the label files gives + or - 2.8 as the correct range. It is true that the idle stabilization figures don't look so bad.

There are some fun things you can do with VCDS. I haven't tried this yet but apparently there is a standing start or lap timer.

I'd say for all new users of VCDS, make a full scan and keep it because it will give you all the part numbers (BCM, ABS, engine ECU etc) as well as current codings if you (or a garage) need to recode a new part to original.

The other thing that is worth doing is making a channel map. if you tick 'Engine' (01) and 'Measuring Values' and hit 'Go' with the engine warm and idling it will (assuming your van is running well) give you a snapshot of all possible live data and show what is healthy or normal. This way in years to come when the van is sick you have more chance to notice anything out of whack at idle by capturing and comparing another channel map snapshot. This process has nothing to do with re-mapping it just records data. On the completed map you can see what all the various temperatures were at the time plus all the injector compensation and injector deviation vales figures discussed here.

 

I think he is worried about the -5 on the injector deviation PB. It does stand out against the others and he says the label files gives + or - 2.8 as the correct range. It is true that the idle stabilization figures don't look so bad.

@T5 TDI the -2.8 to +2.8 was only on Injector Quantity Deviation.Not sure what the range was for the switch deviation.

Thanks for the VCDS tips, will do that

 

A label file I have for my van says plus or minus 100 milliseconds so that is within spec too.

023,1,Switch Time Deviat.,Cylinder 1,Specification: -100.0...+100.0 ms

 

A label file I have for my van says plus or minus 100 milliseconds so that is within spec too.

023,1,Switch Time Deviat.,Cylinder 1,Specification: -100.0...+100.0 ms

@T5 TDI Thanks again