DP Fix for sale

taz2ko0 · 03-29-2021, 02:11 PM

Quote:

Originally Posted by KAR

Hey thanks! I just finally got my N54 135i roadworthy again last week and right away installed the DPFix. I ran two full drive cycles over the weekend, but never got my cats to read "Complete".

I had followed the BMS install instructions and previous guidance from #taz2ko0 as carefully as I could. Also I'm only using MHD at the moment and had flashed back to Stage 0. I was beginning to think I had a dud... Great catch regarding checking the MHD OEM/catted DP setting! One of those, "why didn't I think of that" moments. LOL

Appreciate you making mentioning of this and I'll post my results as soon as I have some good news.

No problem

TheMilkManz · 03-30-2021, 10:40 PM

Worked perfectly on my N54 single turbo setup

taz2ko0 · 04-07-2021, 09:38 PM

Bump

taz2ko0 · 04-12-2021, 08:13 AM

Morning Bump

autoart · 04-16-2021, 04:06 PM

Do you really need to unplug the battery?

taz2ko0 · 04-16-2021, 04:38 PM

Quote:

Originally Posted by autoart

Do you really need to unplug the battery?

Not really. It is mainly precautionary measure. When I have done it I never removed the battery.

HB E90 · 04-18-2021, 11:56 AM

subd

jake169 · 04-19-2021, 04:15 PM

Taz is super helpful and will work with you to get your DP fix dialed in to clear your codes...

taz2ko0 · 04-26-2021, 08:29 AM

bump

taranfx · 04-26-2021, 02:16 PM

I've the original BMS dpfix and when its set to 5oclock, I get 29F4 and 29F5 code. But when set a tinge below 5 (i.e. even 4.8), it throws 2CA8 and 2CA9.

I've done multiple drive cycles each time clearing codes. Cat monitors just dont complete. Its stuck in "Incomplete". I double checked the cables, it looks fine.
What could i be doing wrong?

taz2ko0 · 04-26-2021, 02:31 PM

Quote:

Originally Posted by taranfx

I've the original BMS dpfix and when its set to 5oclock, I get 29F4 and 29F5 code. But when set a tinge below 5 (i.e. even 4.8), it throws 2CA8 and 2CA9.

I've done multiple drive cycles each time clearing codes. Cat monitors just dont complete. Its stuck in "Incomplete". I double checked the cables, it looks fine.
What could i be doing wrong?

Have you tired going to pin 20 instead of pin 19 or vice verse. I would try switching to a different post O2 sensors and see what happens.

taranfx · 04-26-2021, 02:38 PM

Quote:

Originally Posted by taz2ko0

Have you tired going to pin 20 instead of pin 19 or vice verse. I would try switching to a different post O2 sensors and see what happens.

Do you mean I should try switching yellow wires of pin 19 with pin 20 on the harness? Or the cable that attaches to dpfix?

taz2ko0 · 04-26-2021, 03:09 PM

Quote:

Originally Posted by taranfx

Do you mean I should try switching yellow wires of pin 19 with pin 20 on the harness? Or the cable that attaches to dpfix?

Cables that attach to the dp fix.

taranfx · 04-29-2021, 05:51 PM

Quote:

Originally Posted by taz2ko0

Cables that attach to the dp fix.

Done.
dpfix is at 4.5 position
Now I get 2CB9 oxyen sensor 2 after cat. Signal fixed at rich

But monitor are now "complete"

taz2ko0 · 04-29-2021, 07:22 PM

Quote:

Originally Posted by taranfx

Quote:

Originally Posted by taz2ko0

Cables that attach to the dp fix.

Done.
dpfix is at 4.5 position
Now I get 2CB9 oxyen sensor 2 after cat. Signal fixed at rich

But monitor are now "complete"

I would set it to 5 or 5:30

taranfx · 04-30-2021, 03:41 PM

Quote:

Originally Posted by taz2ko0

I would set it to 5 or 5:30

Tried both. still same code. Maybe dpfix doesnt work with e89. At least I havent seen anyone in forums being able to make it work

taz2ko0 · 05-03-2021, 11:22 AM

Quote:

Originally Posted by taranfx

Tried both. still same code. Maybe dpfix doesnt work with e89. At least I havent seen anyone in forums being able to make it work

It should work unless your post sensors are bad. Check your afr's and make sure that they are not flatlined.

KAR · 05-05-2021, 11:39 PM

Quote:

Originally Posted by j__e92

Thank you. I had it at the 5 o'clock position, but was throwing 29F4 and 29F5. I increased the strength, but also realized I did not reselect the oem/catted DP option in MHD when I flashed back to stage 0. After reflashing the car and with the dial at ~8 o'clock I am currently throwing 29E0 and 29E1. Should I go back to 5 o'clock and give it another try?

Quote:

Originally Posted by KAR

Hey thanks! I just finally got my N54 135i roadworthy again last week and right away installed the DPFix. I ran two full drive cycles over the weekend, but never got my cats to read "Complete".

I had followed the BMS install instructions and previous guidance from #taz2ko0 as carefully as I could. Also I'm only using MHD at the moment and had flashed back to Stage 0. I was beginning to think I had a dud... Great catch regarding checking the MHD OEM/catted DP setting! One of those, "why didn't I think of that" moments. LOL

Appreciate you making mentioning of this and I'll post my results as soon as I have some good news.

Quote:

Originally Posted by taz2ko0

No problem

Just getting around to posting my results here. After sorting out the MHD OEM DP setting earlier I finally dialed in (literally) the correct setting for my particular N54. Ultimately I achieved "Catalyst Complete" readiness, and no codes, at the ~3 o'clock position. Bottom line, it works! Thanks once again to @taz2ko0 for cranking these out! I expect I just may keep my 135i for another 10 years now, so may have buy a spare one, lol.

taz2ko0 · 05-07-2021, 01:02 PM

Quote:

Originally Posted by Maria20

Interested in one. Can you pm install instructions?

Here is an install video

Here is the manual

https://m.imgur.com/a/FSnWr

taz2ko0 · 05-13-2021, 08:29 AM

Bump

Antetokounmpo · 05-14-2021, 08:40 AM

Quote:

Originally Posted by taz2ko0

Bump

Found you on ebay, but I will buy one here for some profit into your pocket.

taz2ko0 · 05-14-2021, 10:17 AM

Quote:

Originally Posted by Antetokounmpo

Found you on ebay, but I will buy one here for some profit into your pocket.

Requested Thanks

03-30-2021, 10:40 PM	#354
TheMilkManz Enlisted Member 10 Rep 34 Posts Drives: 135i Join Date: Jul 2015 Location: Arizona iTrader: (2)	Worked perfectly on my N54 single turbo setup __________________ 2008 135i DocRace ST 6266
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04-07-2021, 09:38 PM	#355
taz2ko0 Aw sh!t 120 Rep 1,029 Posts Drives: M4 Join Date: Jan 2009 Location: Naples, FL iTrader: (4)	Bump __________________ Bigger is always better! M4
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04-12-2021, 08:13 AM	#356
taz2ko0 Aw sh!t 120 Rep 1,029 Posts Drives: M4 Join Date: Jan 2009 Location: Naples, FL iTrader: (4)	Morning Bump __________________ Bigger is always better! M4
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04-16-2021, 04:06 PM	#357
autoart Colonel 376 Rep 2,323 Posts Drives: 2009 335i e90 M/ 22 X3/2016 Ho Join Date: Oct 2010 Location: socal iTrader: (8)	Do you really need to unplug the battery?
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04-18-2021, 11:56 AM	#359
HB E90 Second Lieutenant 60 Rep 211 Posts Drives: 2010 E90 335i Space Gray Join Date: Jul 2015 Location: Huntington Beach CA iTrader: (0)	subd __________________ 2019 F150 S Crew 4x4 3.5 Twin Turbo - newest $$$ pit 2010 E90 SG 335i Sport, Premium, Nav. MHD, VRSF CP, 5" HD FMIC, DCI's, 1 step colder NGK's, Apex EC-7's and Michelin PS4S, Cree 6000k H8 LED Angel eyes SOLD 2011 Toyota Tacoma DC TRDOR 4x4 lifted and armored SOLD 2014 Acura MDX SHAWD wifes
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04-19-2021, 04:15 PM	#360
jake169 Private First Class 30 Rep 182 Posts Drives: 2011 35is Join Date: Apr 2013 Location: new jersey iTrader: (0)	Taz is super helpful and will work with you to get your DP fix dialed in to clear your codes...
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04-26-2021, 08:29 AM	#361
taz2ko0 Aw sh!t 120 Rep 1,029 Posts Drives: M4 Join Date: Jan 2009 Location: Naples, FL iTrader: (4)	bump __________________ Bigger is always better! M4
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04-26-2021, 02:16 PM	#362
taranfx Z4 35is 70 Rep 270 Posts Drives: 2011 Z4 35is \|\| 2016 435i Join Date: Apr 2016 Location: Santa Clara, CA iTrader: (0)	I've the original BMS dpfix and when its set to 5oclock, I get 29F4 and 29F5 code. But when set a tinge below 5 (i.e. even 4.8), it throws 2CA8 and 2CA9. I've done multiple drive cycles each time clearing codes. Cat monitors just dont complete. Its stuck in "Incomplete". I double checked the cables, it looks fine. What could i be doing wrong? __________________ 2011 Z4 E89 35is 2016 435i GC m-sport
	Appreciate 0 Quote

05-13-2021, 08:29 AM	#372
taz2ko0 Aw sh!t 120 Rep 1,029 Posts Drives: M4 Join Date: Jan 2009 Location: Naples, FL iTrader: (4)	Bump __________________ Bigger is always better! M4
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