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[SP_3.2]

Just thinking when i had the same kind of prob with mine last year turned out to be a VERY small cut in one of the fuel line under that plate .Also would only show up when under 1/2 tank as the hole was high up the line and was ok but when under 1/2 tank could then take in air giving Shuddering and the smell.

HTH

Steve    

[Marks DTM Calib]

Something slightly odd at idle there, the idle block learn valves look a little high.....which sudgests its something before the plenum or affecting both banks.

The rest looks fine, yours I would expect to have a slightly higher idle air useage as its driving a motability sponsored gearbox.

[Jimbob]

Something slightly odd at idle there, the idle block learn valves look a little high.....which sudgests its something before the plenum or affecting both banks.

The rest looks fine, yours I would expect to have a slightly higher idle air useage as its driving a motability sponsored gearbox.

I'm sure your not....but your not checking against the ones i just reset on mine are you  

There was a big difference, but always had been since my new exhaust, so noticed i could reset em, so did to see what happens  

[Marks DTM Calib]

Something slightly odd at idle there, the idle block learn valves look a little high.....which sudgests its something before the plenum or affecting both banks.

The rest looks fine, yours I would expect to have a slightly higher idle air useage as its driving a motability sponsored gearbox.

I'm sure your not....but your not checking against the ones i just reset on mine are you  

There was a big difference, but always had been since my new exhaust, so noticed i could reset em, so did to see what happens  

So you destroyed the reference data   :-/

[Jimbob]

Something slightly odd at idle there, the idle block learn valves look a little high.....which sudgests its something before the plenum or affecting both banks.

The rest looks fine, yours I would expect to have a slightly higher idle air useage as its driving a motability sponsored gearbox.

I'm sure your not....but your not checking against the ones i just reset on mine are you  

There was a big difference, but always had been since my new exhaust, so noticed i could reset em, so did to see what happens  

So you destroyed the reference data   :-/

Not falling for that....they are earlier in this thread and dont alter that fast     (do they  )

[TheBoy]

Air intake looks a bit high on ljays - would that affect how much air the engine thinks its using?  Not sure why it has air temp, as surely MAF should measure amount of air, regardless of its temp  :-/

[Kevin Wood]

Air intake looks a bit high on ljays - would that affect how much air the engine thinks its using?  Not sure why it has air temp, as surely MAF should measure amount of air, regardless of its temp  :-/

Air density changes due to temperature do have a small effect on the volume verus the mass of air, so there is a correction applied. Not the end of the world if it was a bit out though. It would easily be taken out by the Lambda loops.

Kevin

[Jimbob]

Right, so all new electrics then.

Plugs
Leads
Dis

Plugs I know are vauxhall.
Leads, isnt it halfords vectra ones for this?
Dis - not sure, whats recommended?  and which type am I likely to have - early MV6 - long plenum.

[Marks DTM Calib]

Air intake looks a bit high on ljays - would that affect how much air the engine thinks its using?  Not sure why it has air temp, as surely MAF should measure amount of air, regardless of its temp  :-/

Air density changes due to temperature do have a small effect on the volume verus the mass of air, so there is a correction applied. Not the end of the world if it was a bit out though. It would easily be taken out by the Lambda loops.

Kevin

Actualy, most injection systems use the air temp to do nothing more than give an indication of fuel temp as air mass is the true value required for combustion calcs.

[Kevin Wood]

Air intake looks a bit high on ljays - would that affect how much air the engine thinks its using?  Not sure why it has air temp, as surely MAF should measure amount of air, regardless of its temp  :-/

Air density changes due to temperature do have a small effect on the volume verus the mass of air, so there is a correction applied. Not the end of the world if it was a bit out though. It would easily be taken out by the Lambda loops.

Kevin

Actualy, most injection systems use the air temp to do nothing more than give an indication of fuel temp as air mass is the true value required for combustion calcs.

If your metering is recording air mass then that's true.

Kevin

[Jimbob]

Right, so all new electrics then.

Plugs
Leads
Dis

Plugs I know are vauxhall.
Leads, isnt it halfords vectra ones for this?
Dis - not sure, whats recommended?  and which type am I likely to have - early MV6 - long plenum.

Any advice on the above?  anyone?  I know people have had differing results with various leads  :-?

[Jimbob]

Right, gonna get the DIS from the dealer, not many on ebay at the mo, plus not sure on type.

The leads, been searching and I think its Bosch B162's I need, although there are references to B143's

Any advice or better solutions before I order em?

[Marks DTM Calib]

The Bosch plug leads for the V6 are a bit hit and miss (and have been very dissapointed in them!)

These however, look to be genuine!

http://cgi.ebay.co.uk/vauxhall-omega-spark-plug-leads_W0QQitemZ140309016266QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item140309016266&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

[Marks DTM Calib]

Pretty sure I have a new DIS in the garage that I could chuck in the post.

[Jimbob]

Great spot, ordered those, DIS would be great if you think you have the right type, which do you think it is?  Crank sensor was oval if it helps age?