Vauxhall Vectra cold running problem

Is this a manual gearbox or an automatic?????

Hi
It's a 6 speed manual 115,00 miles, full history

If only from cold , check glow plugs .There was also a Technical Service Bulletin on engine ,

Field Remedy: 1957
Subject: Engine Y30DT, High Pressure Pump - Lack of power during acceleration
Models: Engines: Option:
Vectra-C 2003...2007,Signum 2003...2007 Y30DT| Z30DT,Y30DT| Z30DT
Complaint: Engine lack of power during acceleration. During investigation with TECH2 a pressure drop between actual rail pressure and desired rail pressure is visible.
Cause: Blocked suction control valve (SCV) within the high pressure pump.
Production: Modified production process (earlier changing of manufacturing tools, improved cleanliness) implemented at supplier. Countermeasures were implemented with engine number 69692 (01.09.2006).

Remedy:
Before carrying out Technical Service Bulletin 1957 update ECU with modified software as of TIS 2000-DVD, version 76 (a modified software regarding high pressure diagnosis was implemented, improved DTC: P0093 detection).
If the DTC still occurs refer to the following snapshots in datalist 2 "NOK I". The snapshot shows an increased fuel flow restriction within the fuel feed circuit.
1: desired fuel pressure 2: actuel fuel pressure
We recommend to disconnect the fuel lines from the tank to the filter, blow them by compressed air (in disconnected condition) and finally to replace the fuel filter assembly.

The snapshot in datalist 2 "NOK II" shows a constant drop of actual fuel pressure and identified the suction control valves (SCV) failure.
1: desired fuel pressure 2: actuel fuel pressure

In case of an identified suction control valves (SCV) failure replace both suction control valves (SCV) of the high pressure pump as discribed below.
Important: - During the complete procedure it is obligated to work in a clean environment. - Prevent contamination at SCV area. Small contaminations, which cannot be seen by eye, can cause major problems on engine performance. Particle size of 0,3 mm, can be already critical! - Do not use gloves. - Do not use SCV in case it has been dropped. - Make sure that pressure in the system is released before loosening the pressure connection pipe between pump and rail. - Disconnect battery after failure checking procedure. Wait for a few minutes before starting SCV replacement procedure in order to prevent any system action.


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