SAI and N249 Removal

[ssman]

I have checked the tower piece and the blanking plate does not fit at the top, you must install it at the engine, my advice about the collant would be to drain the radiator first so as the coolant loss is min. from the sorrunding low point hose, you will still lose some fluid. you will remove three bolts to get the combi out, put the spare bolt back into the unused hole. good luck

[kangfu]

Ok sort of related, i'm got the P0411 (P0411 Sec.Air Inj.Sys. Incorrect Flow Detected 16795) code on my car at the moment. Just a Forge 007 DV, N75J, PD160 and K&N Filter installed. I cleared the code the first time by resetting the battery and it came on again after a day or two and i cleared that with my friends Scangauge 2 - just hope it doesnt come back.

Any ideas what it could be?

[noone]

Sounds like a pipe or maybe the combi valve playing up. Any other codes?

[kangfu]

Nah no other codes just that one. I'll check the vacuum hoses that go to the combi when i get home. Possibly the hose is pinched somewhere or is leaking/broken?

Hope so, dont want to fork out for a new SAI pump or combi valve.

[noone]

Check the air hose to the block and airbox, they clip in. If loose, may be loosing some of the record air or sucking unfiltered air.

[kangfu]

Thanks, yeh will do. Just dont want any water getting into the pump which would cost more $ to replace than a hose.

Fingers crossed its just a loose/cracked hose or something similar.

[philthy]

I was quoted $790 by VW for a replacement SAI pump. Fortunately it doesn't do anything too important.

[noone]

I did the easy part of this today, removed the VAC system, used the IE plugs.
Went to block off the SAI at the combi-valve, didn't fit...

Left the SAI pump in place, pipes where they are and used the IE resistor to eliminate the flow.

So far so good, I'll wait a few weeks to see if I get a code. Car feels a little torqier, but could be a placebo. Certainly wasn't any worse on startup.

[Catfish]

I did the easy part of this today, removed the VAC system, used the IE plugs.
Went to block off the SAI at the combi-valve, didn't fit...

I did this last week. The forge mk4 (2 hole) blanking plate will fit on the top of the combi valve tower - replacing the valve - if you file the bolt holes in the tower a bit bigger. Made a new gasket out of silicone sheet. Works well and looks good and no loss of coolant.

[noone]

That was a pain to access (with my tools), so I've left the pump i place for the time.

Starting to think my pump or combi was dying, the car is much quieter ad smoother on start up now. Its been a week, daily driving and no code yet (some magic in those IE resistors).

Jmac, when I go to do the block off, where should I clamp to stop the excessive fluid loss? Car will be on jacks.

[WARFURIC]

I'm now getting a CEL for the SAI with error code P4011.

If I go ahead and remove the SAI and combi, will I have any issues with Insurance or roadworthy down the line?

I honestly just want the light gone, and the though of $$$ for my mechanic to troubleshoot it more (popped up 2 months back) or replace the pump is not something I really want to deal with now.

[noone]

SAI and N249 Removal

Removing may not stop the code appearing. At this stage there is no universal solution to the issue.

[s4mmie]

From what I've seen everyone who's done the emissions delete overseas with compulsory emissions testing has passed.
I can't see it being a big issue re roadworthy, unless they know what they're looking for in the bay?

[WARFURIC]

From what I've seen everyone who's done the emissions delete overseas with compulsory emissions testing has passed.
I can't see it being a big issue re roadworthy, unless they know what they're looking for in the bay?

Sounds good. I'll look into having my mechanic check the area again to see if it's a busted pump/hoses/clogged valve etc. Then depending on cost, look into getting it all deleted.