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Vauxhall Vectra Z19DT 2004 - Excessive pump pressure, codes P0090-09, P0088-07 - Unresolved #

Posted by Andy Broomhead on December 7, 2012, 9:56 pm

Year of Manufacture *: 04
Engine Size and Code *: Vectra 1.9. Z19DT
( Optional ) ECU Type: Bosch EDC16
( Optional ) Scanner Used: Vaux com/ DEC
( Optional) Fault Codes: P0090-09 P0088-07 & P0070-71 !?

Car has had new pump, 2nd hand injectors, regulator/ pressure switch.
When I got to the car, rail pressure rises on start and engine cuts out. If revs are kept above 2.5k the pressure expected and actual pressure difference can be kept below 45Mbar and engine will run.
Checked injectors for small leak off all the same, coded injectors in as they were all at *******
Owner bought car like this 2 years ago! so I have no history on it.
Cant see anything the garage have missed now injectors are coded, except I cant find a listing for P0070-71 on this engine, so am wondering about software or ecu fault?

Any thoughts please?

Re: 04 vectra 19DT. excessive pump pressure

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on December 8, 2012, 9:14 am, in reply to "04 vectra 19DT. excessive pump pressure"

>>> Cant see anything the garage have missed now injectors are coded,<<<

That would not cause your fault.

Whats the duty cycle on the control valve ?

What does the vehicle do when the control valve is electrically disconnected ?

Mark

Modern cars, Its all wizardry and witchcraft

Re: 04 vectra 19DT. excessive pump pressure

Posted by Andy Broomhead on December 10, 2012, 8:42 pm, in reply to "Re: 04 vectra 19DT. excessive pump pressure"
Message modified by board administrator December 11, 2012, 2:26 pm

Havnt unpluged it to see but will when I next go out there, as for duty cycle, the engine doesnt really run long enough to pin it down.

Re: 04 vectra 19DT. excessive pump pressure

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on December 10, 2012, 9:16 pm, in reply to "Re: 04 vectra 19DT. excessive pump pressure"
Mark Carter

>>> the engine doesnt really run long enough to pin it down. <<<

Scope it along with rail pressure and post your findings.

Mark

Modern cars, Its all wizardry and witchcraft

Unresolved #

Posted by Andy Broomhead on January 27, 2013, 8:26 pm, in reply to "Re: 04 vectra 19DT. excessive pump pressure"
Message modified by board administrator January 28, 2013, 4:23 pm

Still not had time to return to this, as its been like it for over 2 years, owner is not relying on it!

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