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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Trying to sort out P013E & P013A codes after VRSF downpipe & DP fix install



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      09-01-2016, 04:27 PM   #1
AtlasM
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Trying to sort out P013E & P013A codes after VRSF downpipe & DP fix install

I've been getting a persistent SES light after installing my VRSF catless downpipe and DP fix. According to VRSF, their DP fix is similar to the Area 74 CatSim. I've pulled the codes and am getting the following codes:

P013A - Rear Oxygen Sensor Slow Response Rich to Lean Bank 1 Sensor 2
P013E - Rear Oxygen Sensor Delayed Response Rich to Lean Bank 1 Sensor 2

Whenever I clear the codes they come back pretty quickly.

I'm not sure if this is related to the VRSF DP fix itself, or if something got messed up with my oxygen sensors during the install. Anyone able to help?

Last edited by AtlasM; 09-01-2016 at 05:11 PM.
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      09-02-2016, 10:34 AM   #2
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Did you contact vrsf? Are you running a tune?
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      09-02-2016, 11:08 AM   #3
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I have the PPK flash but no Cobb or JB4. My original plan was to use the DP fix and PPK flash for a while before going for a more aggressive tune.

I'm also working with VRSF but wanted to see if anyone here had any insight. I'm going to try completing a drive cycle to see if the ECU learns the O2 sensor signal, and if I still get these codes I'm going to disconnect the DP fix and see if it removes these codes and replaces it with the usual P0420 catalyst code that you tend to see with a catless downpipe.

Honestly though since I don't have emissions testing where I live, I'm considering doing without the DP fix and just running auto clear on a JB4.
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      09-02-2016, 07:52 PM   #4
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Just from the wording of the codes naming the "delayed/slow response," I would have to say the problem lies within the cat sim that was installed. Maybe the signals that it's sending aren't working as fast as the real time updates from the O2 sensor itself. But that's just a guess.

You seem to have the right idea though. Give it a little time and see if they get used to each other.

Personally I've learned to just live with the SES light. I check the faults from time to time to make sure no other problems come up, but I have no emissions testing here either so I don't worry about it. My last car lit up like a Christmas tree on the cluster but ran like a top
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      09-03-2016, 12:53 PM   #5
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If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean. It's meant to only be used before emissions. Also the dp fix is for the n54 engines not the n55
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      09-05-2016, 10:33 PM   #6
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Quote:
Originally Posted by vivanapoli806 View Post
If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean. It's meant to only be used before emissions. Also the dp fix is for the n54 engines not the n55
VRSF makes an N55 dp fix also.
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      09-05-2016, 11:56 PM   #7
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Quote:
Originally Posted by vivanapoli806 View Post
If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean. It's meant to only be used before emissions. Also the dp fix is for the n54 engines not the n55
3 statements. 3 not trues. your doing well.

please stop spreading misinformation.

they figured out the n55 dp fix a year ago, actually its lil longer. cuz i was the one running it....the rest of the stuff you said we can just disregard as its the opposite of what you said.
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      09-05-2016, 11:56 PM   #8
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Quote:
Originally Posted by Johnny Boost
Quote:
Originally Posted by vivanapoli806 View Post
If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean. It's meant to only be used before emissions. Also the dp fix is for the n54 engines not the n55
VRSF makes an N55 dp fix also.
Since when? Do you have a link at all I would be interested in getting one for my f10?
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      09-06-2016, 12:00 AM   #9
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Quote:
Originally Posted by AtlasM View Post
I've been getting a persistent SES light after installing my VRSF catless downpipe and DP fix. According to VRSF, their DP fix is similar to the Area 74 CatSim. I've pulled the codes and am getting the following codes:

P013A - Rear Oxygen Sensor Slow Response Rich to Lean Bank 1 Sensor 2
P013E - Rear Oxygen Sensor Delayed Response Rich to Lean Bank 1 Sensor 2

Whenever I clear the codes they come back pretty quickly.

I'm not sure if this is related to the VRSF DP fix itself, or if something got messed up with my oxygen sensors during the install. Anyone able to help?
common issue. hard to pin point it.

the sensors are very sensitive. the install is straight forward and simple.
done correctly and by the book i've never had any issues.
i'll see what i can find out.
u running e85 by chance?
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      09-06-2016, 12:01 AM   #10
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Quote:
Originally Posted by vivanapoli806 View Post
Since when? Do you have a link at all I would be interested in getting one for my f10?
they've had it for some time now just check their website and you will find it.
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      09-06-2016, 12:02 AM   #11
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Quote:
Originally Posted by kevBquick
Quote:
Originally Posted by vivanapoli806 View Post
If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean. It's meant to only be used before emissions. Also the dp fix is for the n54 engines not the n55
3 statements. 3 not trues. your doing well.

please stop spreading misinformation.

they figured out the n55 dp fix a year ago, actually i lil longer. cuz i was the one running it....the rest of the stuff you said we can just disregard as its the opposite of what you said.
It's not misinformation that the n54 dp fix from vrsf is only meant to be used before emissions only and not left running on the car at all time. Numerous people including vendors and people who have used them have said this. This is what I'm referring to. And last I saw vrsf didn't make one for n55 only area has one out.
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      09-06-2016, 12:10 AM   #12
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Quote:
Originally Posted by vivanapoli806 View Post
If you run a dp fix for an extended period of time it will begin to mess with your afr which can cause you to run lean.
ok not true. and we are talking about n55s here not n54s.

Quote:
Originally Posted by vivanapoli806 View Post
It's meant to only be used before emissions.
ok not true. i've been running mine for 1.5yrs.

Quote:
Originally Posted by vivanapoli806 View Post
Also the dp fix is for the n54 engines not the n55
ok how did i read that wrong. its for n55s and there has been one.
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      09-06-2016, 12:12 AM   #13
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the fix is meant to be run not just to delete the DP light but to stop people from running auto clear which is what everyone does.

running the dp fix and turning off autoclear lets you know how your cars really been running the whole time. now we can see what we always thought was a healthy car...........may not have been.
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      09-06-2016, 10:57 AM   #14
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Quote:
Originally Posted by vivanapoli806 View Post
It's not misinformation that the n54 dp fix from vrsf is only meant to be used before emissions only and not left running on the car at all time. Numerous people including vendors and people who have used them have said this. This is what I'm referring to. And last I saw vrsf didn't make one for n55 only area has one out.
This is a VRSF N55 DP fix. If you go to their downpipe page there is an option to select DP fix.

http://www.vr-speed.com/vrsf-3-5-sta...-bmw-135i.html

The way the N55 DP fixes are supposed to work is very different from the N54 DP fix, and can be left on the car with no ill effects.

At least, it's supposed to, if it works correctly.
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      09-06-2016, 11:08 AM   #15
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Quote:
Originally Posted by kevBquick View Post
common issue. hard to pin point it.

the sensors are very sensitive. the install is straight forward and simple.
done correctly and by the book i've never had any issues.
i'll see what i can find out.
u running e85 by chance?
I'm not running E85.

My weekend got busier than I was expecting so I still haven't had a chance to do a full drive cycle like in the instructions here: http://www.e90post.com/forums/showpo...&postcount=303

I need to try and do that today if I can since I'm bringing my car to my mechanic for some other work tomorrow.

My big question mark here is if the VRSF and Area N55 DP fixes are actually the same. When I ordered the VRSF one, I kinda had forgotten about the Area one.

Since there's no emissions testing where I live, my main concern is keeping the SES light from coming on all the time. I'm still tempted to just remove the thing and run a Cobb Stage 2+ map since I'm FBO (well, stock exhaust after the DP but everything else).

I think the Cobb Stage 2 maps block the usual downpipe-related codes from turning on the SES light while allowing the rest of them to still come through, but I'm waiting for confirmation on this from Cobb.
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      09-06-2016, 12:44 PM   #16
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Quote:
Originally Posted by AtlasM View Post
I'm not running E85.

My weekend got busier than I was expecting so I still haven't had a chance to do a full drive cycle like in the instructions here: http://www.e90post.com/forums/showpo...&postcount=303

I need to try and do that today if I can since I'm bringing my car to my mechanic for some other work tomorrow.

My big question mark here is if the VRSF and Area N55 DP fixes are actually the same. When I ordered the VRSF one, I kinda had forgotten about the Area one.

Since there's no emissions testing where I live, my main concern is keeping the SES light from coming on all the time. I'm still tempted to just remove the thing and run a Cobb Stage 2+ map since I'm FBO (well, stock exhaust after the DP but everything else).

I think the Cobb Stage 2 maps block the usual downpipe-related codes from turning on the SES light while allowing the rest of them to still come through, but I'm waiting for confirmation on this from Cobb.
Please keep us updated on your progress. I have the A74 sim and it has worked flawlessly since day one. I am curious if the VRSF works just as well.
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      09-06-2016, 04:44 PM   #17
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^^^^^ yup just passed nyc inspection with A74 😆
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      09-06-2016, 05:14 PM   #18
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Quote:
Originally Posted by deemarr 335i View Post
^^^^^ yup just passed nyc inspection with A74 😆
Same here however I do see a 2CED (slow response) thrown every now and again after making WOT pulls.
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      09-06-2016, 07:21 PM   #19
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Today I had a thought: I've been using Torque Pro and a BAFX bluetooth OBD dongle to clear codes. Maybe it's not fully clearing everything that needs to be cleared in order to keep the SES light away.

I figured just to be sure I'd go to Harbor Freight and picked up a mid-level OBD scanner from them rather than rely on Torque Pro. The Harbor Freight on my way home from work didn't have the scanner I wanted, but the one on the other side of town did. So I went to the farther-away Harbor Freight, checked codes in the parking lot, and in addition to the P013E and P013A codes, I also got a P2096 (Post Catalyst Fuel Trim System Too Lean) code that hadn't been showing all the previous times I scanned with Torque. I didn't scan today with Torque so I don't know if that's a new code or one that Torque missed. I didn't have tools handy to disconnect the battery first but figured at least I'd put some drive time in on it. I then drove 18.7 miles home (according to Google Maps). The SES light stayed off the whole time, which is something.

I scanned the car with the engine running in my driveway, and had pending (but not stored) P013E and P013A codes. These codes and the P2096 also showed in permanent, but not stored, codes. I don't know if I necessarily completed a full drive cycle because I don't think all the readiness monitors were showing. Here's what I got for readiness:





So...I'm going to keep driving it around with no WOT for a while and see if any SES light comes back. Hopefully the problem is that Torque kinda sucks at fully clearing codes compared to a real scanner and this sorted it. We'll see.

I'm going to be heading out of town this weekend so I'm going to disconnect the battery, clear codes, and let it idle for a good minute before heading off. That'll be fun since my fiancee hates waiting to leave when we're heading out on a road trip. I'll have to make sure and do the code clearing and idling before she's ready to go.

Last edited by AtlasM; 09-06-2016 at 08:00 PM.
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      09-06-2016, 11:44 PM   #20
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Well, the SES light came back later tonight. So much for the real scanner vs. Torque theory.

I can't remember if I mentioned it already in this thread but the calibration sequence with idling, clearing codes, doing a full drive cycle, etc wasn't exactly followed by my mechanic when he wired up the DP fix. So I'm going to have to disconnect the battery and do the full calibration procedure, that was never done the first time around after install.
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      09-09-2016, 10:19 AM   #21
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What are you running for a tune?
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      09-10-2016, 11:59 PM   #22
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I'm running the PPK flash but no tune i.e. Cobb or JB4. Tomorrow I'm going to disconnect the battery and do the idling and complete a full drive cycle as described in the install instructions. Just have been busy and haven't had a chance to do that process.
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