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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > options to delete CEL w/ downpipe
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      06-29-2015, 01:18 PM   #1
cmonter3323
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options to delete CEL w/ downpipe

hey guys' so im thinking of getting a catless Downpipe for my n26. I was wondering, what are some options to delete the CEL? I'm running a dinan tune so I don't think it's possible to remove, only with a jb4. I don't race it since its my daily, just spirited driving from time to time. I don't want to keep the CEL because I'm afraid of issues I may have when I bring the car in for service or warranty work.

if anyone knows somebody that is willing to do it in the socal area please let me know, its the only thing holding me back from getting the downpipe!

thanks!!
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      06-29-2015, 02:33 PM   #2
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BMS F SERIES CAN FLAP MODULE

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      06-29-2015, 03:27 PM   #3
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Mike does that delete the CEL? Does not mention that in the description.
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      06-29-2015, 03:30 PM   #4
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Quote:
Originally Posted by Dippydo View Post
Mike does that delete the CEL? Does not mention that in the description.
It does
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      06-30-2015, 01:44 PM   #5
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Quote:
Originally Posted by mike@x-ph.com View Post
It does
what other components would I need to remove the CEL? and if you dont mind shooting me the price I would appreciate it. thanks mike!
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      06-30-2015, 01:50 PM   #6
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Quote:
Originally Posted by cmonter3323 View Post
what other components would I need to remove the CEL? and if you dont mind shooting me the price I would appreciate it. thanks mike!
You do not need any other component.
You either need the Jb4 or the BMS F can flap module.
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      06-30-2015, 03:04 PM   #7
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To clarify, you can run the F Series Can Flap module to remove the CEL (not mentioned for legal reasons).

Or if you want to switch to more powerful tune then the Jb4 would take care of it also. When switching to the Jb4 you'd need to have your dinan tune removed so keeping that in mind the F Series can Flap Module would likely suit your needs the most.
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      07-02-2015, 02:51 PM   #8
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Quote:
Originally Posted by cmonter3323 View Post
hey guys' so im thinking of getting a catless Downpipe for my n26. I was wondering, what are some options to delete the CEL? I'm running a dinan tune so I don't think it's possible to remove, only with a jb4. I don't race it since its my daily, just spirited driving from time to time. I don't want to keep the CEL because I'm afraid of issues I may have when I bring the car in for service or warranty work.

if anyone knows somebody that is willing to do it in the socal area please let me know, its the only thing holding me back from getting the downpipe!

thanks!!
The canFlap module would be your best bet. Just be aware that it needs to be plugged in at all times. Its easy to tuck it away under the steering wheel panel or under the seat.

Mike
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      07-02-2015, 10:52 PM   #9
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Does it work for F10? Could it open the valve anytime I want?
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      07-03-2015, 01:07 AM   #10
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Quote:
Originally Posted by slownfast View Post
Does it work for F10? Could it open the valve anytime I want?
According to Burger Tuning it is not compatible with the F10

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      07-03-2015, 03:41 PM   #11
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Quote:
Originally Posted by slownfast View Post
Does it work for F10? Could it open the valve anytime I want?
I believe it doesn't for that application. I can double check for you.

Mike
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      07-03-2015, 03:43 PM   #12
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
I believe it doesn't for that application. I can double check for you.

Mike
That was a quick edit
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      07-04-2015, 03:53 PM   #13
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
The canFlap module would be your best bet. Just be aware that it needs to be plugged in at all times.
So anybody know exactly how these work? I'm curious.

Option A) the code is set and then immediately cleared?

Option B) the code is intercepted and the computer is given false data.

A wild ass guess would be that the JB4 does option B and the canFlap does Option A???

I'm assuming the reason Dinan is CARB approved is because it doesn't mess with these codes?



I've got an N26, I'd prefer the Dinan tune but I am also looking at opening up the exhaust and putting in less restrictive cats. Hell even running a stock N20 setup would be a vast improvement.
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      11-16-2015, 05:02 PM   #14
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Quote:
Originally Posted by mike@x-ph.com View Post
You do not need any other component.
You either need the Jb4 or the BMS F can flap module.
So what does this canFlap module actually do?
It deletes the CEL caused by downpipes? (i thought there was no such thing for the F30s. I might have been reading old threads?)
And Finally does it only connect to the OBDII and nothing else, or do i have to connect it to the OBDII and something else in the engine bay?

Thank You
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      11-16-2015, 05:40 PM   #15
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Quote:
Originally Posted by AZOOZ_95 View Post
So what does this canFlap module actually do?
It deletes the CEL caused by downpipes? (i thought there was no such thing for the F30s. I might have been reading old threads?)
And Finally does it only connect to the OBDII and nothing else, or do i have to connect it to the OBDII and something else in the engine bay?

Thank You
It connects to the OBD only.
It does delete codes and control the exhaust valves
By the way the JB4 deletes codes as well
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      11-17-2015, 03:59 AM   #16
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Quote:
Originally Posted by mike@x-ph.com View Post
It connects to the OBD only.
It does delete codes and control the exhaust valves
By the way the JB4 deletes codes as well
The only thing i need is to clear CEL. I want to get a downpipe but i would hate getting a CEL.
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      11-17-2015, 04:04 AM   #17
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Quote:
Originally Posted by AZOOZ_95 View Post
The only thing i need is to clear CEL. I want to get a downpipe but i would hate getting a CEL.
If you are not interested in the tune, get the BMS can flap module to delete the CEL
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      11-17-2015, 07:36 AM   #18
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Quote:
Originally Posted by mike@x-ph.com View Post
If you are not interested in the tune, get the BMS can flap module to delete the CEL
Can i read the codes before clearing? ( just in case the CEL light is not from the downpipe)

Sorry for bothering you with these many questions.
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      11-17-2015, 04:35 PM   #19
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Quote:
Originally Posted by AZOOZ_95 View Post
Can i read the codes before clearing? ( just in case the CEL light is not from the downpipe)

Sorry for bothering you with these many questions.
You can if you connect it to your laptop
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      02-11-2016, 02:37 AM   #20
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Learned a lot from this post. Thanks!
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      02-11-2016, 02:40 AM   #21
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Quote:
Originally Posted by fherjohn
Learned a lot from this post. Thanks!
Did you get an f30?
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      02-11-2016, 03:37 PM   #22
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Quote:
Originally Posted by fherjohn View Post
Learned a lot from this post. Thanks!
Glad we were able to help
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