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[ians]

OK I've checked the breather pipes.
The one on the left is the shorter of the two & travels almost straight down. The one on the right is longer & travels past this & further down (if that makes sense?).

I'm not sure if I'm reading this correctly, but you seem to be saying that your two small bore pipes cross ('travels past this')- ie the pipe from the nearside plenum connection connects on to the box furthest towards the offside (from memory the same one that the big bore pipe also goes to).   That's not what I recall when I did my breathers ( I concur with sounds2k's description)..  

[Marks DTM Calib]

Have you done the 'blip throttle' multiram test.....

[ians]

What's that, Mark?

[Bo Bo]

Have you done the 'blip throttle' multiram test.....

........err.......

[sounds2k]

with a running warm engine ... blip the throttle, the rear multiram valve should move ... if you blip it again - but harder and further, the front one should move - but you do need to do it "fast and hard" (missus) ... alternatively, the valves can be manually activated using a tech2 tester ...

[Bo Bo]

with a running warm engine ... blip the throttle, the rear multiram valve should move ... if you blip it again - but harder and further, the front one should move - but you do need to do it "fast and hard" (missus) ... alternatively, the valves can be manually activated using a tech2 tester ...

I'll give this a go tomorrow although guess what?
Yep, not sure what I'm looking for, I'm pretty sure I know where they are but not sure what I should see moving.
If I floor the accelerator I get a hesitation & if from a standing start it feels like it's going to die for a split second & then roars away.....

[sounds2k]

if you look on the "bagpipes" there is a brown rod bit, there's another on the end of the plenum nearest the windscreen wipers. You're looking for the brown rod to move, that's the actuator ... when you blip the throttle it should move ... and return again afterwards

I'm wondering if the problem is more to do with the air flow sensor - trace the pipe from the airbox, in the 90 degree bend there's a bit which should have a plug connected, after which there's another bit of straight pipe which should also have a plug connected ... check those ...  :-?

[Bo Bo]

By a brown rod bit do you mean a short rod with a "ball type joint" at one end?

[Marks DTM Calib]

Thats it....one at the front of the engine on the trumpets and one on the back of the plenum.....

[Bo Bo]

Blimey I got something right  
I had a quick look today & there didn't seem to be a lot of movement in either but I wasn't 100% sure so will double check tomorrow........

[sounds2k]

... are the connections to the sensors inside the pipes from the air box (between there and the bagpipes) plugged in OK?

[Bo Bo]

Have you done the 'blip throttle' multiram test.....

OK did this properly today.
The rear multiram is moving pretty freely. The rear also moves with a hard/fast rev but not for long.
All the connectors & vac pipes seem OK (but I'm groping in the dark TBH).
I swapped the two small breather pipes on the back of the plenum & things seem to be a little improved but the school run was in full swing so didn't really get to test it properly, will know more tomorrow.
However tick-over is still low.....

[TheBoy]

Have you done the 'blip throttle' multiram test.....

OK did this properly today.
The rear multiram is moving pretty freely. The rear also moves with a hard/fast rev but not for long.
All the connectors & vac pipes seem OK (but I'm groping in the dark TBH).
I swapped the two small breather pipes on the back of the plenum & things seem to be a little improved but the school run was in full swing so didn't really get to test it properly, will know more tomorrow.
However tick-over is still low.....

What about the front?

[Marks DTM Calib]

The breathers on the back wont make bog all difference.....

[Bo Bo]

Have you done the 'blip throttle' multiram test.....

OK did this properly today.
The rear multiram is moving pretty freely. The rear also moves with a hard/fast rev but not for long.
All the connectors & vac pipes seem OK (but I'm groping in the dark TBH).
I swapped the two small breather pipes on the back of the plenum & things seem to be a little improved but the school run was in full swing so didn't really get to test it properly, will know more tomorrow.
However tick-over is still low.....

What about the front?

Sorry typo, should have read;

The rear multiram is moving pretty freely. The front also moves with a hard/fast rev but not for long.
All the connectors & vac pipes seem OK (but I'm groping in the dark TBH).
I swapped the two small breather pipes on the back of the plenum & things seem to be a little improved but the school run was in full swing so didn't really get to test it properly, will know more tomorrow.
However tick-over is still low.....