[R1000K3]

Originally Posted by Pseudo Nim

Is this mod required if you're installing catless downpipes (but are keeping the other cats as is)? Shiv says if "fully catless" only....

Thanks!

The only mod that O2 sensors will recognize is catless DP's, what happens later in the exhaust doesn't matter in this sense. Unless there is O2 sensors also after the secondary cats...

[Pseudo Nim]

Right... so here's a stupid question. I got a 2W 2.2kOhm and a 4W 10kOhm resistor. Acceptable? No problem with wattage difference?

[scalbert]

Originally Posted by Pseudo Nim

Right... so here's a stupid question. I got a 2W 2.2kOhm and a 4W 10kOhm resistor. Acceptable? No problem with wattage difference?

The wattage won't make a difference.

[pander5]

Here's a little trick that helped me do this mod this weekend. There were long leads on the resistors I bought at Radio Shack. You can cut them down but leave enough to tuck into the wire insulation to hold the resistor in place while you solder it. You can do this on both ends.

Ran the car good after doing this with my new catless DP's and it ran code free!

[marconi118]

is this working with the last version of the ECU program? (35.1)

[bmwzimmer]

Originally Posted by marconi118

is this working with the last version of the ECU program? (35.1)

Good question. Does anyone know??

[J x K]

Originally Posted by marconi118

is this working with the last version of the ECU program? (35.1)

+1

I'm running catless downpipes and bms/riss racings' 02 sims don't seem to work on the latest DME's

[bmwzimmer]

My friend has Riss Racing DP fix and got flashed recently and having the same problems.

[Malek@MRF]

I'm working on a solution for that.. However, BMS has released a new unit that is adjustable.

I will create a little DIY for you guys that have the new DME's like I do. My 2008 was much more friendly DME wise than my 2009

Stay tuned...

[ehssan_alkhiyami]

Shiv : is this DIY for the rev I or rev II procede ???

I do have the rev II canbus with V4 , I'm getting my DPs installed soon ... do i have to follow this DIY or I'm fine with the V4 itself ???

[NM_BMW]

Originally Posted by ehssan_alkhiyami

Shiv : is this DIY for the rev I or rev II procede ???

I do have the rev II canbus with V4 , I'm getting my DPs installed soon ... do i have to follow this DIY or I'm fine with the V4 itself ???

Your fine adjust the O2 modifier within the procede software. This DIY is for Rev I procedes.

[ehssan_alkhiyami]

Originally Posted by Humtek

Your fine adjust the O2 modifier within the procede software. This DIY is for Rev I procedes.

Thanks for your confirmation dude ... appreciate it ..

[marcielago]

Hope this question was never asked b4 in this thread:

Does the normal O2 simulator which is bought disable giving signals to the ECU or does it do the same as Vishnu's method. Basically I'm concerned with what happens if the car really face an emissions-induced problem and the car doesn't throw a code.

[Malek@MRF]

Originally Posted by marcielago

Hope this question was never asked b4 in this thread:

Does the normal O2 simulator which is bought disable giving signals to the ECU or does it do the same as Vishnu's method. Basically I'm concerned with what happens if the car really face an emissions-induced problem and the car doesn't throw a code.

The one you buy is the exact same thing as this. The newer one that BMS sells just uses a variable resistor instead of a fixed value so you can adjust it yourself, essentially leaving all the guess work up to you.

[allmotorh22]

Pretty sure this is the same concept that goes into this box that sells for $180:

How would this work on an N/A engine without the special harness you have for your turbo cars? Going off these instructions for the N52 engine?:


How would this DIY work on an N/A engine without using the special harness you have for your turbo cars? Going off these instructions for the N52 engine?

[JB135MDCT]

[QUOTE=shiv@vishnu;2865128]Next Vishnu DIY: How to build a boost controller (SSTT/JB-like device) for under $2[/QUOTE

and to you. But when?

[M3E46M]

I just want to say THANK YOU Shiv! I have READINESS for 5 bucks plus I got some soldering done for fun. You DA Man! You saved me like 4 days of work messing with swapping Down Pipes back and fourth.

[hardr85]

I am resurrecting this thread. I have a 06 330i e90 and I will be doing this soon. I will be going into the dme since I doneed have a process harness. According to Bently the 60002 connector has the o2 sensor wires. The wires for the bank 2 sensors are pins 5, 7, and 9 are bank 2 sensor 1 inputs, pins 19, 24, and 25 are bank 2 sensor 2 input. Bank 2 sensor 1 ground is 11. There is not a ground listed for bank 2 sensor 2 but I am thinking it is 24 because the other two sensor grounds are next to each other and the bank 1 sensor 2 ground is 23.

My question is, does it matter which input wires I use as long as I include one wire from each sensor, and can I use any of the sensor grounds wires to attach the ground wire?

Someone please help

[JuniorB]

Are you doing this for headers without running a tune?? Waiting for results

[hardr85]

I am running hassmachines tune. In this post he mentions using pins 19 and 20 in the x60002 connector. In Bentley, it lis to pin 20 as input o2 sensor bank 1 sensor 2, and 19 as input o2 sensor bank 2 sensor 2. I do not know anything at all about wiring, I get the concept but do not completely understand exactly how it works, but I am thinking I would not want to use any wire for the bank 1 o2 sensors.

[hardr85]

I went to dealership and confirmed for the msv70 that pins 19 and 20 are the pins used for the sim. Also learned that BMW left information out of Bentley so it is not always correct. This explains why the pinout in Bentley is incorrect as far as the downstream sensors are concerned.