Car still got judder after cleaning egr + boost sensor.

[bigpaw35]

Hi and thank you to all who gave me help with diagnosis on my juddery car. But i am afraid its still doing it!!
Symptoms
juddery and stuttery between 2000 and 3000rpm. feels like a valve opening and closing. doesnt do it when accelerating heavy.


heres what i have done so far.
1) removed and thoroughly cleaned the EGR valve (dirty lil begger it was!!).
2) removed and cleaned boost sensor, it was well choked up with dirt etc.
3) Have check for fault codes and nothing coming up. no codes or faults present!!

suggestions??

new egr valve??

3rd injector wiring??

Car is 06 vectra 1.9 cdti 120.

i am putting it into garage where i bought it from. is an independant. and my brother in law is head mechanic too!!! lol
am getting it checked with diagnostics

will let you know outcome

i have 2 codes readers if anyone needs cars checked!!
Perth / Blairgowrie areas.

As always any help would be gratefully recieved

Ian

[Celes]

I put my bet on the 3rd injector wiring

[focus_driver]

I put my bet on the 3rd injector wiring

I wouldn't - it's a 120bhp engine.

[Celes]

I wouldn't - it's a 120bhp engine.

So?

Field Remedy: 2049
Subject: Engine Z19DT/H - Jerking, somtimes Trouble Code P0201-P0204 set
Models: Engines: Option:
Vectra-C 2004...2006,Signum 2004...2006,Astra-H 2004...2006,Zafira-B 2005...2006 Z19DT| Z19DTH| Z19DTL,Z19DT| Z19DTH| Z19DTL,Z19DT| Z19DTH| Z19DTL| Z19DTJ,Z19DT| Z19DTH| Z19DTL
Complaint: Customer complaint about jerking sometimes SVS lamp on and DTC P0201-P0204 set.
Cause: Software and / or fretting corrosion on injector plug.
Production: Modified wiring harness has been implemeted in production as of engine numer: Z19DTH17000444.

Remedy:
In case of customer complaint reprogram ECU according TSB 1849 before changing any parts.
If TSB 1849 will not cure the problem install field fix injector plugs (partnumber 93189918 / cataloguenumber 62 86 769).
Mentioned Field fix kit does not contain of a 1,5mm² wire as mentioned in TIS 2000 wiring diagram.
In case of concern please use 2,5mm² instead.
FunctionalGroup: J - Engine
Complaint Group: 06 - Failure Code Setting by Control Unit
Trouble Code: P0201,P0202,P203,P204

[bigpaw35]

car was in getting a diagnostic check. they could not find any fault on elcectrical side!! said not faults codes present etc.
he removed plug for egr and said it ran ok besides light staying on saying it was unplugged!!
so am thinking its the egr myslef as i always have since day one.
they say they are talking to vauxhall garage about it for more information!!