O2 sensor bypass and relocation DIY with pics - E46 Fanatics Forum
Jul 11, 2009 · The O2 sensor harnesses are ready to be re-installed on the main engine wiring harness (without the sensor connected), and routed to the "drug bin." Take the O2 sensors you have cut from …
MS45 Post cat o2 sensor / SAP delete with catless...
Feb 14, 2021 · MS45 ECU Tuning: Rear O2 Delete SAP Delete Tune - E46 3 Series, E39/E60 5 Series, X3, X5, Z4 Your Facelift and ZHP car is not alone anymore! MS45 equipped facelift or ZHP BMW …
Bypassing post-cat O2 sensors easy? How do they work...
Jun 9, 2015 · So, after 331K, the post-cat O2 sensors are finally throwing faults (surprisingly, in unison) in my 325Ci. Firstly, can I safely assume that the post-cat sensors on an E46 have no effect on …
How to bypass the second o2 sensor - Automotive Forums .com
Mar 5, 2005 · you cant bypass the o2 sensor, because the ecu needs the readings from the o2 sensor. you can tell the ecu that it is running properly with an o2 sim. the only symtoms you'll get is a CEL …
MS42 EWS delete - E46 Fanatics Forum
Jan 22, 2023 · This also allowed me to do other stuff with my e46 like the secondary air pump delete, post cat o2 sensor delete, and change my RPM limit. Will plan on doing a 330i intake manifold swap …
DIY: Post-cat O2 (oxygen) sensors replacement (w/pics)
Dec 25, 2010 · I've done post-cat O2 sensors replacement today. Took me about 3 hours total, but I wasn't in hurry and did everything slowly, to make sure I do not screw up anything. First of all, …
Is there a free way to tune out secondary o2 sensors and SAP?
Apr 1, 2021 · I have catless headers and deleted the SAP on my 1999 328i. Are there any free methods out today that I can use to tune them out? I have the INPA cable and the BMW scanner cable with a …
DIY: build your own O2 simulator - E46 Fanatics Forum
Feb 4, 2011 · How to build Your Own Oxygen Sensor Simulator The rest of the page shows how to build an oscillating signal generator with just the right frequency and voltage to fool the ECU. It is based on …
CATACLEAN: Does it affect O2 sensors while in use?
Sep 13, 2018 · But i wonder. Does the presence of CATACLEAN in the fuel have any impact on the O2 sensors while conduction this kind of test.? After all, the point of CATACLEAN is to clean the O2 …
MS45.1 Readiness with Catless Headers SOLVED - E46 Fanatics Forum
Feb 27, 2020 · With the help of the MS4x wiki, I was able to turn of diagnostics for the secondary O2 sensors and secondary air pump, which I had removed. This creates a not ready state for the …