phazed Posted April 22 Report Share Posted April 22 As title. Just wondering while I am assembling mine. Seems to be a lot of hardware that other cars haven’t got. Will it pass an MOT without it? I read somewhere that it was primarily for the yank market… Quote Link to comment Share on other sites More sharing options...
Nobbie Posted April 23 Report Share Posted April 23 It should do as the SAI is designed to clean up the exhaust during the warm up phase. The MOT is done on a fully warmed up car, so it should have no effect unless the removal is bodged and leaves an unplugged air line somewhere. Quote Link to comment Share on other sites More sharing options...
map Posted April 23 Report Share Posted April 23 Quote Link to comment Share on other sites More sharing options...
TROOPER88 Posted April 23 Report Share Posted April 23 Not all have it fitted. Currently got one in the workshop without one and have seen it lots of times in the past. Quote Link to comment Share on other sites More sharing options...
phazed Posted April 23 Author Report Share Posted April 23 I wonder if I remove the system now whether error codes would come up. If so, what or who could remove them? Quote Link to comment Share on other sites More sharing options...
Paul P Posted April 23 Report Share Posted April 23 My understanding is that it's a "compliance for type approval" device, not a "testable on individual cars" thing. But - given it's one of the sources of CEL I would expect if a car with it simply had it disconnected or was faulty then a CEL results - and as far as I know that's an MOT failure isn't it? Quote Link to comment Share on other sites More sharing options...
½cwt Posted April 23 Report Share Posted April 23 Might just be more complex to remove than maintain. Quote Link to comment Share on other sites More sharing options...
phazed Posted April 23 Author Report Share Posted April 23 Quite. It is all assembled atm so will leave until it plays up. Will progress tomorrow. Quote Link to comment Share on other sites More sharing options...
ATM Posted April 23 Report Share Posted April 23 One of my 996 cars has the little black pump or had it. I removed it and put a bung in the pipe to prevent any vac leaks. No errors or warnings. Car drives fine without. 1 Quote Link to comment Share on other sites More sharing options...
986T8 Posted April 23 Report Share Posted April 23 1 hour ago, ATM said: One of my 996 cars has the little black pump or had it. I removed it and put a bung in the pipe to prevent any vac leaks. No errors or warnings. Car drives fine without. Yes, the Yanks delete it then flash to the Euro tune I think. If you already have the tune it could be easy. Quote Link to comment Share on other sites More sharing options...
Paul P Posted April 23 Report Share Posted April 23 All good, but.... recently was asked to help out a local TIPEC guy who has 2 996 Ruf Turbo's - as an aside - him and his wife are total petrol heads - he has 2 kids - one Ruf has the rear seats in - so thats her car for her and the kids - his has the rears removed - and was his MUM's car when he was a kid - she used to do the school run in it.! Anyway - his car threw a CEL - and when I scanned it - it was secondary air system related - he said "oh again - I just had that mapped out on my daily BMW M2" - so, that car, with the RUF map on the custom DME threw a CEL - if we can get round it with a rubber bung - thats great - but I am surprised ( and I bow to real first hand experience from @ATM on this ) if its that simple - I would expect it would be a "mapped out" custom ECU map. Would love to know if you can just remove it and the ECU remains happy Quote Link to comment Share on other sites More sharing options...
ATM Posted April 23 Report Share Posted April 23 You could just try it by unplugging it. See if any errors are thrown. If not then remove. Quote Link to comment Share on other sites More sharing options...
phazed Posted April 23 Author Report Share Posted April 23 Just unplug the feed to the air pump? Quote Link to comment Share on other sites More sharing options...
Ninesomething Posted Wednesday at 01:05 PM Report Share Posted Wednesday at 01:05 PM Then plug it I believe. They're said to be pretty heavy. If so that's a plus. Quote Link to comment Share on other sites More sharing options...
ATM Posted Wednesday at 01:40 PM Report Share Posted Wednesday at 01:40 PM On 4/23/2024 at 9:19 PM, phazed said: Just unplug the feed to the air pump? Yes The 12v stuff. I assume then it wont do anything. Assume also this will not cause an air / vac leak because you dont want an air / vac leak. I removed the whole thing, But I am suggesting if not brave enough for that you could try just unplugging the 12v stuff from it. Make sense? Quote Link to comment Share on other sites More sharing options...
ATM Posted Wednesday at 01:41 PM Report Share Posted Wednesday at 01:41 PM 35 minutes ago, Ninesomething said: Then plug it I believe. They're said to be pretty heavy. If so that's a plus. The black pump thing and metal bracket on the 996 weighs a couple kg maybe. Not much really. 1 Quote Link to comment Share on other sites More sharing options...
Ninesomething Posted Wednesday at 01:48 PM Report Share Posted Wednesday at 01:48 PM 6 minutes ago, ATM said: The black pump thing and metal bracket on the 996 weighs a couple kg maybe. Not much really. Get it. I thought you meant unplug the hose..... Quote Link to comment Share on other sites More sharing options...
CRC Posted Wednesday at 04:16 PM Report Share Posted Wednesday at 04:16 PM I agree with others. I'm pretty sure it was fitted for the American market and was designed to pump air into the exhaust when the engine was cold and running a very rich mixture to keep it going ..... "on full choke" as you might have said back in the day. The theory was that the pumped air would combine with the unburnt hydrocarbons at this point to ensure that they were completely combusted and no "black smoke" would come out of the exhaust. All our MOT emission tests are performed with the engine fully warm, so even if fitted, it wouldn't be operating. A mate of mine had that system fitted to an old 1.8 turbo Passat and it drove him mad as the engine light would keep coming on, warning him of a fault on something that wasn't needed and would cost a small fortune to replace the pump on no doubt. Quote Link to comment Share on other sites More sharing options...
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