This plug-in allows you to check the injection timing setting on
a VE
TDI engine (NOT PD or CR varieties).
This needs to be done after you change the timing
belt and should be done every once in a while
to keep tabs on belt stretch and pump/pulley misalignment.
The standard procedure for this is
to have the engine idling at operating temperature (coolant temp
>85*C), go to measuring block 000 for the engine, switch to basic
settings and report fields #2 (injection timing) and #9 (fuel
temperature) on a special graph.
The history of the last 100 samples is displayed as a
"cloud" of points. From the size and shape of this "cloud" you can
see how much "jumping around" your engine is doing, and your average
timing is probably right in the middle of the cloud.
This plug-in reports the timing
on the graph in real-time, so you don't need to have your manual
sitting on your lap at the same time. The application also gives
you a comment in the "result" field, that will tell you if all the
conditions are fulfilled to check the timing (some people don't
realize you need to have the engine running, for instance...) and
if your timing is within spec or not.
Step by step:
-
Make sure you are using thecurrent version of
VCDS
or a fully registered version of
VCDS-Lite)
-
Start your engine and make sure the coolant is up to normal running temp.
TDI engines may take a long time to warm up at idle.
-
Start VCDS
or VCDS-Lite
-
Click
[Select]
-
Click
[01-Engine]
-
Click
[Meas. Blocks - 08]
-
Go to group 000
(Group 004 for V6 TDI - VCDS-Lite does NOT support this)
-
Click
[Switch to Basic
Settings]
-
Click
[TDI Timing]
-
Select your engine code from the drop-down menu
It is normal for the glowplug light to flash and for the engine
sound to change slightly while using this function. This thread
may be helpful as well:
http://forums.tdiclub.com/showthread.php?t=163435
The TDI Timing checker does not work in Shareware Mode since
Basic Settings is not available. When using VCDS-Lite, only ECU's
that have timing checked in Basic Settings group 000 will show the
TDI Timing button. For V6 TDI ECU's that use Basic Setting in group
004, refer to the factory repair manual for specs.
The TDI Timing Checker works only as a
�plug-in�. You must start it using the
[TDI Timing]
button in VCDS/VCDS-Lite. Starting it any other way will result in error
messages and it won�t work.
Note to PD (pumpe duese aka unit injectors) and CR (common
rail) owners:
The timing in PD and CR engines is determined electronically by the ECU.
There is neither a need nor an ability to check timing on the PD or
CR
engines using a scan tool. There are no graphs published for the simple reason that the timing is set using a dedicated VAG
locking tool when changing the timing belt :-)
Related Links:
