idle issues

[nip]

twoqu I don't know how to put a link to another thread I did a few years back, its shows the way I have piped it all up, jamil is also running same same way with no problems but saying that his maf is on the pressure side, I am hoping that once mapped this will be ok

[twoqu]

I have just seen the shiney pic! So its a vent to atmosphere type. What have you done with the carbon cannister/evap solenoid stuff?
Obviously a stock car has no issues so the answer is in whats different if you see what I mean. Unless as we have already mentioned it something to do with the turbo somehow. I am struggling to understand why but there is a body of evidence to suggest it is. Quite a few have relocated the Maf.

[nip]

I have just seen the shiney pic! So its a vent to atmosphere type. What have you done with the carbon cannister/evap solenoid stuff?
Obviously a stock car has no issues so the answer is in whats different if you see what I mean. Unless as we have already mentioned it something to do with the turbo somehow. I am struggling to understand why but there is a body of evidence to suggest it is. Quite a few have relocated the Maf.

lol was shiney, with the old set up it was connected back to the inlet but now ive deleted the n80 and left the carbon canister disconected

[Ross]

As Robin stated, i had the same problem with my GT3071R. First on my coupe, where it was really annoying. I got in the habit of dipping the clutch, letting it die and then bump it on approach to junctions. Became second nature after a while! It was the same before and after mapping.

When fitted to my avant it occurred but less frequently, only difference being the ABY ignition and headwork & oversize valves. That said i only coveted 200 miles before it went bang...

I was planning to go pressure side MAF. It remained a mystery, but im sure logging MAF readings and fuelling would give some clues.

[twoqu]

Not sure if this relevant or not:

http://www.s2forum.com/forum/showpost.php?p=445270&postcount=17

Others run both a seperator and a catch can and then return the clean air back into the system. Like JP for example.

[nip]

Not sure if this relevant or not:

http://www.s2forum.com/forum/showpost.php?p=445270&postcount=17

Others run both a seperator and a catch can and then return the clean air back into the system. Like JP for example.

That does make sence, I'm gonna go home in a bit and connect the n80 back up

[nip]

As Robin stated, i had the same problem with my GT3071R. First on my coupe, where it was really annoying. I got in the habit of dipping the clutch, letting it die and then bump it on approach to junctions. Became second nature after a while! It was the same before and after mapping.

When fitted to my avant it occurred but less frequently, only difference being the ABY ignition and headwork & oversize valves. That said i only coveted 200 miles before it went bang...

I was planning to go pressure side MAF. It remained a mystery, but im sure logging MAF readings and fuelling would give some clues.

Ross did urs only cut out when warm

[twoqu]

So is the N80 disconnected physically and electrically?

[UrS4boy]

N80 Evaporative Emissions Frequency Control Valve and Canister info

So is the N80 disconnected physically and electrically?

Yes.

More details here: http://forums.quattroworld.com/s4s6/msgs/21014.phtml

[nip]

So is the N80 disconnected physically and electrically?

yep

[twoqu]

Seem to recall the Motronic doesn't like it much when it does not see it! You must have the fault code then. Not entirely sure what the parameters are but basically the ecu is trying to blend the vapours into the engine whilst maintaining the Lambda/idle speed etc so it may be influencing things.

[nip]

Seem to recall the Motronic doesn't like it much when it does not see it! You must have the fault code then. Not entirely sure what the parameters are but basically the ecu is trying to blend the vapours into the engine whilst maintaining the Lambda/idle speed etc so it may be influencing things.

Im going to connect the n80 back and vent in back to the inlet and sew how that works

[twoqu]

If you can even temporarily hook it all back up including the check valve etc and clear the code(s), you might see if its an issue.

[nip]

If you can even temporarily hook it all back up including the check valve etc and clear the code(s), you might see if its an issue.

I will do Il do it later or tomorrow, Il block the smaller valve and plumb the larger pipe in the inlet and see how it goes cheers twoqu

[Rusty]

Is there an echo?

Connect the N80 directly to the IM using some 8mm hose and nothing else. Done.