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Saab 9-3 1.9 Z19DTH - Intermittent lack of power #

Posted by Bryan Swales on August 16, 2013, 1:36 pm

Year of Manufacture *: 2008
Engine Size and Code *: 1900 z19dth
( Optional ) Scanner Used: modis
( Optional) Fault Codes: none

Hi

I have this saab in with intermitant lack of power. No codes logged. Have tested the digital airflow meter but think it is reacting a little slow taking 1.5 sec to go from idle voltage to reach peak at wide open throttle.
Could any of you kind souls enlighten me on how long it should take.
Thanks
would have posted image but mega interference and embarrassed

Re: saab 9-3

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on August 16, 2013, 3:41 pm, in reply to "saab 9-3"

It will depend on a lot of things, what is live data telling you?

How is the turbo reacting?

What is the EGR system doing ?

What back pressure have you got in the exhaust system ?

What is the intake system like ?

Mark

Modern cars, Its all wizardry and witchcraft

Re: saab 9-3

Posted by Piotr Sokolowski <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1848' width='330' height='300' border=0 style='border:none;'> on August 16, 2013, 9:26 pm, in reply to "Re: saab 9-3"

I would read it with somethong lese BUT this system is so sensitive so any fault code would bring mil light on . Egr,dpf,swirl flaps, maybe previous engin e remap etc?

Link: http://www.pandpauto.co.uk

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