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Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power - Fixed #

Posted by Keith Brown on May 1, 2015, 8:36 pm

Year of Manufacture *: 2010
Engine Size and Code *: 2000 LBS
( Optional ) Scanner Used: tech 2
( Optional) Fault Codes: P2282

as above this fault code occurs predominantly when on cruise or overrun! description of fault is actual mass air flow below desired for a four second period & live data confirms at cruise generally 40% down on desired , 110k on clock & drives pretty well, bac to the checks
smoked inlet to find massive leak at manifold runner , replaced! Smaller leak at intercooler hose joint ,replaced, obviously amm replaced gen part all parts learnt in at ecm, software was updated july 2013! would be interested if later updates would cover issue?
have run though field remedy for this code but no fix found,on the road boost desired matches actual ,egr is not very active & I've put this down to low AMM feedback ,i have activated egr & air mass responds well with opening
DPF is all good at 45% saturation & very normal differential pressures at speed
if i had any other observation to note it would be the louder than normal induction sound whilst revving? almost like inlet is open to atmosphere however i have smoked this thing to death & nothing leaking,sorry about the long post ,i wonder if someone could give me a prod & maybe change my direction ,hopefully before i pull al my hair out thanks keith

Re: insignia P2282 symptom 51 loss of power

Posted by Glen Strachan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat1463' width='330' height='300' border=0 style='border:none;'> on May 1, 2015, 8:57 pm, in reply to "insignia P2282 symptom 51 loss of power"
Glen Strachan

Are you able to pressure test exhaust ?

Re: insignia P2282 symptom 51 loss of power

Posted by Keith Brown <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on May 1, 2015, 10:06 pm, in reply to "Re: insignia P2282 symptom 51 loss of power"
Keith Brown

sorry glen no
what is your thinking?

Re: insignia P2282 symptom 51 loss of power

Posted by Glen Strachan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat1463' width='330' height='300' border=0 style='border:none;'> on May 2, 2015, 11:20 am, in reply to "insignia P2282 symptom 51 loss of power"

Just a thought, lack of power / low air flow may be a restriction in the exhaust. We use a pressure tester that screws into an O2 sensor hole

Re: insignia P2282 symptom 51 loss of power

Posted by Keith Brown <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on May 4, 2015, 10:27 am, in reply to "Re: insignia P2282 symptom 51 loss of power"
Keith Brown

good plan i will whittle up an adapter on tuesday morning!

Re: insignia P2282 symptom 51 loss of power

Posted by keith brown <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on May 5, 2015, 11:23 am, in reply to "Re: insignia P2282 symptom 51 loss of power"
Keith Brown

tested pressure at manoifold & at idle its zero & 3700rpm its 1.5 psi ,looks normal?

Re: insignia P2282 symptom 51 loss of power

Posted by Mark Robins <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3563' width='330' height='300' border=0 style='border:none;'> on May 5, 2015, 12:10 pm, in reply to "insignia P2282 symptom 51 loss of power"

I know from experience that logic doesn't seem to work, at least on Vauxhalls! According to that fault code it's not breathing correctly, you've looked for restrictions (inlet manifold runners and now the exhaust) could it be carbon deposits in the intake ports or did you look when you had the manifold off or how about inter-cooler partially blocked, maybe under hard boost the turbo is overcoming the problem?

Just a thought

Mark

Re: insignia P2282 symptom 51 loss of power

Posted by keith brown <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on May 5, 2015, 5:02 pm, in reply to "Re: insignia P2282 symptom 51 loss of power"
Keith Brown

mark , the ports in the head are clean & un restricted
just a bit more info,
on freeze frame data @ 2950rpm Im getting 33g/s air mass no throttle on overun,thats when i get the code, on demand
in workshop @ 2950 i get 41 g/s ?
they are both very similar load conditions, what is the difference
egr closed
turbo request same
inlet flap open
manifold rail at 20%
on my previous post i stated max exhaust pressure in the workshop was 1.5 psi,actual on the road i did get 4psi full load , is that too much?
i understand the parameters are tight for logging codes on the modern car but this car is across the board 25% down on requested air mass ,im finding it tough to believe the fault hasnt jumped out & slapped me in the face

Re: insignia P2282 symptom 51 loss of power

Posted by Tony Ludford <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5539' width='330' height='300' border=0 style='border:none;'> on May 5, 2015, 7:13 pm, in reply to "Re: insignia P2282 symptom 51 loss of power"
Tony Ludford

If air-mass is down, where's it getting air from? Either figures are wrong (faulty new MAF, but I doubt that)?
Or it's getting air from some-where else.... EGR perhaps. Can you blank it, to confirm it's not over-opening or affecting the figures?
As I don't know the engine, has it got a throttle body? Is that opening correctly/smoothly and not restricting flow?

Re: insignia P2282 symptom 51 loss of power

Posted by Keith Brown <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on May 5, 2015, 7:58 pm, in reply to "Re: insignia P2282 symptom 51 loss of power"
Keith Brown

tony , i have blanked egr,no difference
throttle body "says" its open when fault occurs
during actuation it works well

Fixed #

Posted by Keith Brown on May 7, 2015, 7:12 pm, in reply to "Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power #"
Edited by board administrator May 13, 2015, 11:35 am

The heavy induction sound was the inlet valves still open when the pistons were still half way up the bores!!!
yes I'm pretty embarrassed ,forgot the fundamentals, this engine had also had a cam belt replaced!
I had & theres a big word here,"assumed"my technician had followed the cam belt replacement procedure ,using the tools provided,oh no crank half a tooth out , he hadn't slackened the cam pulley and the rest is history.
I sort of can't understand why it didn't throw a cam correlation code?
any ways car sorted,& a warning with some training afoot me thinks
that was a long time searching for a fault we created & I'm open to criticism ,i feel pretty very humble
its always a learning curve

Re: Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power FIX

Posted by Mark Robins <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3563' width='330' height='300' border=0 style='border:none;'> on May 8, 2015, 9:36 pm, in reply to "Re: Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power FIX "
Mark Robins

If we're honest we have all been there Keith, so don't be to hard on yourself or you mechanic, we just got to keep learning from our mistakes (hopefully).

Mark.

Re: Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power FIX

Posted by Terry taylor <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5336' width='330' height='300' border=0 style='border:none;'> on May 10, 2015, 4:01 pm, in reply to "Re: Vauxhall Insignia 2.0 2010 - Code P2282 symptom 51 loss of power FIX "
Terry Taylor

Hi Keith we have a new saying"burn to learn"first jobs the hard work then hopefully next one the money earner.terry

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