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      07-31-2018, 11:34 PM   #1
JMOrem
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CEL after VRSF

Hey everyone, I recently installed VRSF and Jb4. I have a CEL that comes on, I'll clear it with menu 4 then after driving for awhile it comes back. No difference in driving.

Any suggestions?

Couple things I noticed with VRSF:

- Vibration / Rattle on either a bracket/flange or heat shield.
- Slight fuel smell. Not sure if this is normal or related to CEL.
- Again, intermittent CEL (I did have the battery unplugged during JB4 and exhaust install.
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      08-01-2018, 01:14 AM   #2
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Assuming you installed a vrsf downpipe?
Catless?
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      08-01-2018, 01:38 AM   #3
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You probably need the spacer. The smell is normal or you could be running rich coz the cel is related to the o2 sensor. You need to pull the code so we can help you better
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      11-23-2018, 01:07 AM   #4
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Lightbulb Downpipe No Cel Solution?

I also want to get the VRSF 4.5" CATLESS DOWNPIPE B58 from Extreme Powerhouse.

I'm holding back on my purchase mainly because of the CEL light, and I don't want my SA to write it up when I go in for service.

I don't like the current solutions - JB4 or Flash tune (expensive just to remove the CEL light).

I found a post from f30 bimmerpost, and he had success with the 90 degree o2 sensor extension. Here is the link: https://f30.bimmerpost.com/forums/sh....php?t=1428608

Did anyone try this with their M240i?
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      12-03-2018, 12:12 AM   #5
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Quote:
Originally Posted by acdapast View Post
I also want to get the VRSF 4.5" CATLESS DOWNPIPE B58 from Extreme Powerhouse.

I'm holding back on my purchase mainly because of the CEL light, and I don't want my SA to write it up when I go in for service.

I don't like the current solutions - JB4 or Flash tune (expensive just to remove the CEL light).

I found a post from f30 bimmerpost, and he had success with the 90 degree o2 sensor extension. Here is the link: https://f30.bimmerpost.com/forums/sh....php?t=1428608

Did anyone try this with their M240i?
I just installed the VRSF downpipe on my m240 yesterday along with a 90 degree O2 spacer. I did not get a CEL at all (right after install and currently a day later). I picked the spacer below because it was stainless steel as opposed to others.

Dewhel O2 oxygen sensor angled extender spacer 90 degree 02 bung extension M18 X 1.5 Stainless Steel https://www.amazon.com/dp/B07875QF9V..._wHmbCbDXFCS35
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      12-03-2018, 05:02 PM   #6
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Quote:
Originally Posted by Geo_M240i View Post
I just installed the VRSF downpipe on my m240 yesterday along with a 90 degree O2 spacer. I did not get a CEL at all (right after install and currently a day later). I picked the spacer below because it was stainless steel as opposed to others.

Dewhel O2 oxygen sensor angled extender spacer 90 degree 02 bung extension M18 X 1.5 Stainless Steel https://www.amazon.com/dp/B07875QF9V..._wHmbCbDXFCS35
Any issues with the drive? Thanks
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      12-06-2018, 11:50 AM   #7
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Quote:
Originally Posted by acdapast View Post
Quote:
Originally Posted by Geo_M240i View Post
I just installed the VRSF downpipe on my m240 yesterday along with a 90 degree O2 spacer. I did not get a CEL at all (right after install and currently a day later). I picked the spacer below because it was stainless steel as opposed to others.

Dewhel O2 oxygen sensor angled extender spacer 90 degree 02 bung extension M18 X 1.5 Stainless Steel https://www.amazon.com/dp/B07875QF9V..._wHmbCbDXFCS35
Any issues with the drive? Thanks
No issues so far. Just a lil meaner sounding and the butt dyno approves.
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      12-07-2018, 06:58 PM   #8
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Quote:
Originally Posted by Geo_M240i View Post
No issues so far. Just a lil meaner sounding and the butt dyno approves.
Sounds like we finally found a solution that works with the B58. I guess I will be making my purchase in Christmas. Keep us updated with the drive/CEL. Thanks!
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      12-08-2018, 10:00 PM   #9
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Quote:
Originally Posted by Geo_M240i View Post
I just installed the VRSF downpipe on my m240 yesterday along with a 90 degree O2 spacer. I did not get a CEL at all (right after install and currently a day later). I picked the spacer below because it was stainless steel as opposed to others.

Dewhel O2 oxygen sensor angled extender spacer 90 degree 02 bung extension M18 X 1.5 Stainless Steel https://www.amazon.com/dp/B07875QF9V..._wHmbCbDXFCS35
I’m running the same spacer on the ER downpipe. I made it 1500 miles before I started getting the CEL. Unfortunately you’ll get it too. It’s as sure as death and taxes.
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      12-09-2018, 11:00 AM   #10
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Quote:
Originally Posted by B58togo View Post
Quote:
Originally Posted by Geo_M240i View Post
I just installed the VRSF downpipe on my m240 yesterday along with a 90 degree O2 spacer. I did not get a CEL at all (right after install and currently a day later). I picked the spacer below because it was stainless steel as opposed to others.

Dewhel O2 oxygen sensor angled extender spacer 90 degree 02 bung extension M18 X 1.5 Stainless Steel https://www.amazon.com/dp/B07875QF9V..._wHmbCbDXFCS35
I'm running the same spacer on the ER downpipe. I made it 1500 miles before I started getting the CEL. Unfortunately you'll get it too. It's as sure as death and taxes.
Maybe I'm an immortal Wesley Snipes? That's right, I'll be Blade.

I'll have to check at the 1500 mile mark then. I presume over time maybe there's build-up that finally reaches the sensor. Time will tell.
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      12-09-2018, 06:58 PM   #11
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I don't understand why there's often a prolonged lapse between pipe/spacer install and the initial CEL, but it's common. I clear it with the JB4, but I need to pass NYS inspection every year, so still figuring out my options.
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      12-09-2018, 11:03 PM   #12
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Quote:
Originally Posted by B58togo View Post
I’m running the same spacer on the ER downpipe. I made it 1500 miles before I started getting the CEL. Unfortunately you’ll get it too. It’s as sure as death and taxes.
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      12-26-2018, 02:07 PM   #13
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Quote:
Originally Posted by Geo_M240i View Post
Maybe I'm an immortal Wesley Snipes? That's right, I'll be Blade.

I'll have to check at the 1500 mile mark then. I presume over time maybe there's build-up that finally reaches the sensor. Time will tell.
Any updates?
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      12-28-2018, 04:15 PM   #14
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Quote:
Originally Posted by acdapast View Post
Quote:
Originally Posted by Geo_M240i View Post
Maybe I'm an immortal Wesley Snipes? That's right, I'll be Blade.

I'll have to check at the 1500 mile mark then. I presume over time maybe there's build-up that finally reaches the sensor. Time will tell.
Any updates?
Clear so far but it's only been 800 miles.
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      01-26-2019, 11:35 PM   #15
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Quote:
Originally Posted by Geo_M240i View Post
Clear so far but it's only been 800 miles.
Following up, good news?
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      01-26-2019, 11:40 PM   #16
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I'll throw out some good news. I was clearing the CEL for several thousand miles with the JB4, but now it's been gone again for a couple thousand miles. Go figure.
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      01-27-2019, 02:06 PM   #17
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What about you Geo_M240i
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      01-27-2019, 02:13 PM   #18
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Quote:
Originally Posted by acdapast View Post
What about you Geo_M240i
No CEL so far at just over 1500 miles. I know it's not a de facto trigger, so I'll keep providing updates in 500-1k.
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      01-27-2019, 08:46 PM   #19
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I got the CEL recently, twice....both times were when. the car was relatively cold and I got on the throttle I sport mode. I cleared them with the jb4 both times and haven't had any recurrences. just need to let her warm up a little longer. $0.02
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      02-06-2019, 07:14 PM   #20
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Aaand it got me. CEL today at about 1800 miles.
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      02-09-2019, 10:31 PM   #21
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Mine’s still off (even though I’ve done 100 miles since my 1/27 post). I’m tempted to get it inspected now, even though I’m good through May.
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      02-13-2019, 03:30 PM   #22
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I just started digging into the research on a downpipe and came across this thread. I'm new to this, so please bear with me.

CEL - Check Engine Light
Catless DP - no catalytic converter so it won't pass California emissions test, correct?
Catted DP - includes catalytic converter so it will pass emissions.
JB4 - tuner that can clear the CEL code and also can be used to tune engine for DP, CAI, etc. for better performance. Question: does the JB4 clearing the CEL allow a catless DP to pass emissions testing? Or should I just go with a catted DP because, you know, California.

Thanks!
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Last edited by MostlyHarmless; 02-13-2019 at 03:35 PM..
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