error 0050 start of injection timing

[zorgman]

hi all and merry xmas.
this is my first post so sorry its a cry for help
right ill tell the tale, bought a non runnerr 1.9 tdi 110 afn sharan, after completly renewing every belt, valves, oil etc the car started up and ran. now it gets intresting as it sounds like the pump is advanced, i followed autodata timing to the letter but it has that metallic ring diesel knock to it and im not using it till ive got it 100% using vag-com it comes back with
error 0050 start of injection timing.
not sure what this is but im sure its timing, how do i fix the fault as if u erease it it comes back instantly.
read on here somewher that you can change the timing using vag-com is this true and how is it done please.
many thanks

[Crasher]

Hello and welcome to the forum. You mean, 00550 Injection commencement regulation. There are a number of possible reasons for this;1) Commencement of injection valve (N108) defective, this is indide the distributor pump.2) Needle lift sender (G80) defective, number 3 injectior.3) Fuel tank empty.4) Fuel supply not OK., fuel shortage.5) Air in fuel system.6) Start of delivery not OK, COI setting.The first thing to do is to set the Commencement Of Injection (COI) timing. To do this you need to get the engine temperature above 85°c, select engine 01, basic settings 04, display group 000 and TDI timing graph. This is shown more clearly here, http://www.ross-tech.com/vag-scope/TDIGraph.html .

[zorgman]

brill,
many thanks im off out to test it now and see what happens.
will post my findings

[zorgman]

done as you said and it says too far advanced to read so now i know why it sounds rough ill get spanners onto the pump fri see if i can adjust it

[Crasher]

It is done by releasing the three bolts on the outer pump pulley and very gently moving the inner pulley a tiny amount and then tightening them up and trying it. The bolts have to be replaced when you are finished depending on the type used. What year is it?

[zorgman]

hi
its a 1999 vw sharan 19tdi 110hp afn code

[montymole]

I was finally able to check the error codes on my Sharan (AFN 1.9 TDI '99) this weekend and found the 00550 code on the engine controller.
With the TDIgraph and engine idling heated to 82 degrees I get a timing off the scale at 203.
Quick question as this seems a lot, the car runs however it is very sluggish and noisy but otherwise OK. Is that possible with this timing or should I look at the N108 valve ?
Next question, is it possible that the range on moving the injection pump able to cover this difference or is it likely the belt is off by a notch ?
I've checked the resistance on the lift valve, which was just in scope at 116.4 ohms.

Thanks for any help .. 8-)

[Crasher]

Try moving the pump but you should really check the cam timing first.

[zorgman]

sorry i cant help as im new to tdi units but learning very fast.
my car has very loud intake noise how i dont know as all pipes are on and secure.
been working it out that the car has a very harsh coarse engine noise weras my mates is sort of soft muted niose and lovly to drive.
getting to the point on mine i wish i kept my petrol galaxy as driving it about sounds like them old post office ldv vans they ran about in