AIS removal on 2017 R6 throwing off CEL - Yamaha R6 Forum: YZF-R6 Forums
 
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post #1 of 5 (permalink) Old 06-02-2019, 05:11 PM Thread Starter
My R6 eats me.
 
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Question AIS removal on 2017 R6 throwing off CEL

Hi Guys!

So I decided to remove my AIS on my 2017 R6, and after installing the blockoff plates and putting the bike back together, the CEL came on with a P1400 error code, which is for the "Cold Start Emission Reduction Control System". Pretty sure its the absence of the AIS causing it. I was wondering:

-Is there an alternative to flashing the ECU to disable the AIS? It costs a lot at the dealers' to get this done. If I buy a ECU flash system, how hard is it to do this myself?

-Can I just put the AIS back on without it being connected to the bike to make the CEL go away, after clearing the fault code with OBD2? How would it affect the AF ratio if the bike thinks the AIS is working, but it's not actually connected to the engine?

I appreciate the advice from you guys on the internet, it's often here that I find real answers than the Stealerships. So Thanks!!
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post #2 of 5 (permalink) Old 06-03-2019, 07:49 PM
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Re: AIS removal on 2017 R6 throwing off CEL

you can probably just hook up the sensor only and zip tie it up in there somewhere. that is if this is what's causing the issue. you could have left something else unplugged.
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post #3 of 5 (permalink) Old 06-04-2019, 01:15 PM Thread Starter
My R6 eats me.
 
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Re: AIS removal on 2017 R6 throwing off CEL

Thanks, Yamahacrazy. I'm fairly certain that I hooked everything back up while putting the bike back together, I spent a few minutes through each section looking for tubes or wires with a flash light. It is pretty evident from the p1400 code that it's the AIS (which reduces emissions). I guess I'll try hooking the AIS back into the bike just for the ECU to find it. The PITA is taking everything off again. -_- Will update.
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post #4 of 5 (permalink) Old 06-04-2019, 05:05 PM
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Re: AIS removal on 2017 R6 throwing off CEL

Hey, I would like to recommended flash tune bike side harness you wont be disappointed. you can tune all your a/f ratio's, change when the fan's come on/ disable the x up valve and your CEL for AIS system, not to mention adjust the engine braking as well. I have it on my 2018 along with the auto tune feature and auto blipper.
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post #5 of 5 (permalink) Old 06-12-2019, 05:57 AM Thread Starter
My R6 eats me.
 
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Re: AIS removal on 2017 R6 throwing off CEL

2018HaydenR6,

Thanks for the suggestion, but I already went ahead and put back the AIS but did not connect it to the engine. I wish I knew the benefits of getting the Flashtune for the ECU, before getting stuff like the exup servo eliminator, PCV etc.

Plugging the AIS back DID remove the CEL though, for people having the same issue out there
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