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Discussion Starter · #1 ·
Any advice welcome on the following .... Been having a little fault recently;

Van starts totally fine whatever the weather (frozen, rain).:mmmm

But it seems there is little or no turbo action (and hence loss of power) until, weirdly, the glow plug light decides to come on after maybe a few minutes. And stays on the rest of the journey, regardless of duration.

Then the engine is at full power and things drive as normal.


Now, just had the van serviced (fluids and filters) which made no difference to the fault. Also asked for a diagnosis. The garage (Vauxhall) were seemingly a little vague ... and said it might be something at fault called a "boost pressure solenoid". Apparently no fault codes emerged on the computer either.

I could accept that causing the lack of turbo ... but why would it affect the glow plug light?

If the diagnosis does seem plausible to board experts :D , does £110 for the part sound right? If not, what should it cost and where from? Is it a DIY possible job?

If the Vauxhall diagnosis seems a crock, anyone got any better ideas? :eh

Many thanks in advance for any help or advice :Cool2:
 

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VXON Resident 4x4 and diesel specialist
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7,524 Posts
if boost solenoid would check that it is try tapping it checking connections on it

might be this they should carry out field remedy ask them if they did it Field Remedy: 1714

Field Remedy: 1714

Subject:Engine - Poor performance with Engine Telltale illuminates, DTC P1125 setModels:Engines:Option:Vivaro 2001...2004F9Q-762-1.9 DI| F9Q-760-1.9 DTIAllComplaint:Sporadic setting of DTC P1125 , insufficient or excessive flow detected in ECU.Cause:Incorrect calibration detection for turbo overboost condition, Boost Pressure Solenoid ValveProduction:Vehicles affected by this concern: F9Q 760 (1.9 Diesel) with EDC 15 C3 built before W0LF7BCB64V609240 F9Q 760/762 (1.9 Diesel) with EDC 15 C13 built after W0LF7BCB64V609241 (The F9Q 762 built before W0LF7BCB64V609241 is not covered by this QI) From March 2004 new ECU fitted by production. Vehicles manufactured after these B/P's are not affected by this concern: F9Q760 - W0LF7BCB64V627234 (9/03/2004) F9Q762 - W0LF7ABA54V628087 (14/03/2004)
Remedy:

In case of customer complaint reflash engine ECU with software version 13.00 (TIS CD 50, available middle of April 2004). The normal diagnostic route and checking procedures should be followed before the reflash however to ascertain there is no obvious system defect.
FunctionalGroup:J - EngineComplaint Group:06 - Failure Code Setting by Control Unit,20 - Poor PerformanceTrouble Code:p1125
 

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Discussion Starter · #3 ·
Thanks for that suggestion fronteraorg ... will get on the case this week. Will post the outcome.

I very much suspect that they aren't all that sophisticated at my local dealer! ;-)
 
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