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SAI (Secondary Air Intake) bypass with APR software

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  • #1

    SAI (Secondary Air Intake) bypass with APR software

    Ladies and Gents with APR tuned 9N3 GTI's.

    I had asked Guy from APR to look into the coding of the SAI codes encountered by some when bypassing the SAI system. For whatever reason, this issue appears to be more prevelant on APR tuned cars than some other softwares. This is to say, that using the blanking plates, resistors, etc does not make the code go away, and the light on the dash is not doing any damage, but prevents indication of a real issue (and is unsightly).

    Guy has been kind enough to delegate some resources to this matter and has advised he will be offering a SAI bypass version of the tune in the near future (technically available now, but it is yet to be distributed as APR does in batches I assume).

    At this time the cost has been advised as $250, which given the work required to code out and I believe APR will stand behind the coding and support their software and that the dealers uploading the code require a piece of the action, seems reasonable to me.

    Regardless of the costs or how many people go down this path, I'd like to thank Guy for looking into this for us.

    I've chosen not to add this to an existing thread as I think it would get lost in amongst the conversation for future Polo enthusiasts.

    Feedback / comments / interest welcome.
    Tags: None
  • #2
    Thanks Noone,and thanks Guy...good to see dev work still being done on the 9n's
    Polo 9n3 GTI

    Comment

    • #3
      im still confused as to why its only some which are affected and not all?
      2016 MY17 Polo GTI with DA package. TMD fitted + Weather strip and Snow Screen removed otherwise dead standard.

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      • #4
        We all are, across the globe...

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        • #5
          Originally posted by noone View Post
          We all are, across the globe...
          For what it's worth, this worked for me, and may be worth a try on problem cars (ie, it's cheap). The original 300ohm air pump resistor from IE resulted in a code. So upped resistance to 400ohm, got a code part of the time. Upped again to 470ohm, and now no code for many weeks/kms. Touch wood.

          Cheers.

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          • #6
            Yeah, I've been without the code for weeks, kms, seems to come back sooner or later.

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            • #7
              I have the code pop up and will be first in line when this comes out. Feel free to take my money!

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              • #8
                Still code free 30,000ks it's all about the resistance

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                • #9
                  I just dont see it. Has anyone with APR software been able to get around the code?
                  Has anyone with CC had ongoing issues with the code.

                  Something in the code me thinks, happy to have another go as its just a few resistors, but I don't see this being the solution for all Polos.

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                  • #10
                    Originally posted by noone View Post
                    I just dont see it. Has anyone with APR software been able to get around the code?
                    Has anyone with CC had ongoing issues with the code.

                    Something in the code me thinks, happy to have another go as its just a few resistors, but I don't see this being the solution for all Polos.
                    I played a bit with resistors, and the CEL still came on...it my also have something to do with the ecu codes ? I'm also getting a CC code soon, so will let you know post that.
                    Polo 9n3 GTI

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                    • #11
                      Originally posted by VWindahouse View Post
                      Still code free 30,000ks it's all about the resistance
                      It really isnt all about the resistance, the ecu can request the pump run for a sec or too whilst you are motoring along, the 02 sensor requests it now and again, this is whats making it hard for folk. Some are good some not, some tuned some not. Its a flow code they get not a pump resistance code, feel free to post your logs guys to see if we all are seeing flow and not resistance so im not blowing a lot of hot air( pardon the pun!!). And with the ecu requesting it only now and again this is why most can erase and drive for days even weeks with nothing then bang! So mate you are with the lucky group. I have done resistors on a few now all the same way and have a couple with Zero problems and a couple with MIL. Dont worry im racking my brain along with a good freind back in the mother land. I think it would be a good one for the likes of Gav with the flexibiilty of being able to have it custom done to erase the SAI from the prom table to stop it asking for it and requesting it later?? off the shelf tuners might be harder, or even a live tuner may be able to do it.
                      Keen as you all are to see it gone!!!!!

                      Cheers
                      Jmac
                      Alba European
                      Service, Diagnostics and repairs. Mobile Diag available on request
                      Audi/VW/Porsche Factory trained tech 25+ yrs exp
                      For people who value experience call 0423965341

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                      • #12
                        SAI (Secondary Air Intake) bypass with APR software

                        Badger in the UK is apparently all over it, but its custom.
                        My code is always flow, I sent Guy the code info for APR to map out.
                        If CC had a solution, that would help me move to that tune as I've been talking about for ages...

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                        • #13
                          Originally posted by noone View Post
                          Badger in the UK is apparently all over it, but its custom.
                          My code is always flow, I sent Guy the code info for APR to map out.
                          If CC had a solution, that would help me move to that tune as I've been talking about for ages...
                          I haven't confirmed they write it out but there's a couple running with deletes done, including mine. So I'll report if mine crops up again.

                          Gavin
                          optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

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                          • #14
                            Please do Gav, like i say its not resistance but flow codes, i know for sure the pump can be requested anytime , and have had reports of the light coming on during a journey, just a thought, all of the tuned ones that ive seen with lights are not CC and of course non tune is non tune therefore ecu un touched. Could be something in that, im really keen to hear but, Gav this could be significant mate they have had other tunes, Jasons does have a light but his aft probe has dramas so will discount that for now, fingers crossed
                            Cheers
                            Jmac
                            Alba European
                            Service, Diagnostics and repairs. Mobile Diag available on request
                            Audi/VW/Porsche Factory trained tech 25+ yrs exp
                            For people who value experience call 0423965341

                            Comment

                            • #15
                              If it's any help, I have an untouched ECU and currently have the CEL for the flow pump.
                              I've been meaning to get the APR tune in the next few months, so if a untouched ECU is needed, happy to offer up my car as guinea pig.
                              2008 Polo GTI, lower honeycomb grills, PD160.

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