2004 BMW 325CI, Oxygen Sensor No Activity Testing

[@sandyande]

thanks for great video loved the bypass test to identify what O2, I recently worked on a 4 cylinder bmw which had 2 upstream sensors but only 1 down stream , the up streams were in exhaust manifold which was split to read cylinders banks 1 + 2 together then 3+4 together. The verus read the O2's fine but BMW INPA software showed a high reading for 2nd O2 down stream that was not even present. One thing i have learned here in the UK is that after O2 replacement you have to reset the fuel adaptions on BMW cheers sandy

[@pinpointautomotiverepair1592]

Great info! Thanks for the information.

[@NewLevelAuto]

Nicely done sir. Keep em coming🖒

[@spelunkerd]

Excellent workup, glad to see your new channel, I'm sub'd. It's so much more professional to test the upstream connections for both the heater and the sensor side, before blindly replacing the part. I've always been surprised when I see a pro test a 5V circuit with a 12V feed, relying on the added resistance of the test light to drag down the voltage drop if any extra current should spill through. Clearly, these systems are robust enough to tolerate brief testing, or you guys would never do it.

[@pinpointautomotiverepair1592]

Yep, I've never had any issue using an incandescent light for testing like this, but if you were worried about it you could always use an LED one!

[@rwrobs777]

Scanner Danner method...moistened finger on battery neg. and other finger on the signal wire to pull it to ground...LOL !!!...GREAT video !!

[@haywardsautomotive6156]

Nice video & keep em coming. Doing a great job.

[@pinpointautomotiverepair1592]

Thanks so much!

[@markcayetano9179]

Mines throwing a P0155 02 heating circuit bank 2 sensor 1. Do you remember which one that is that you fixed. Location wise where that sensor is?!?! I have to fix mines soon!

[@robertlamont8656]

Good day, happy new year to you and thanks for the information you provided, If i disconnect the o2 sensor from a 1994 bmw 318i E36 with an converted m3 engine, is it suppose to bring in the check engine light?? and this would be the sensor behind the CAT but the CAT has been removed by previous owners.

[@jgeorges3061]

excellent and job well done enjoing every second of it thanks for sharing cheeeeers.

[@scottNewworldphotography]

I’ve got fault with my oxygen sensors same as you are working on. Ive replaced all 4 of them but they are still showing as fault all 4. I’ve clear the codes but they still come up as fault 🤦🏻‍♂️🤷🏼‍♂️ any suggestion why it’s showing as a fault.

[@V10PDTDI]

An other thing to watch is if the sensor are plug in wrong the engine will run wrong one time I got one that was mix up and to see the reaction on the fuel trim on both banks I used propane to make a rich mixture and if I remember right one bank would lean out the mixture and the other one would rich it out I was suspicious of o2 sensor mix up I reversed the connection and all was fine maybe it would be a quick way to diagnose a bad sensor by swapping the connection it would prove all power and ground plus sensor signal.

[@fishonnelson2353]

Nice work

[@isrealperez9069]

My problem is rear O2 goes up to almost 9 for it may say it exceeded the range lights 99.2% and I found that my O2 sensor bank 1 wires somehow they were touching each other and caused a p0604 once in awhile so now I have a check engine light for P0171 lean condition all the vacuum lines and everything else with their filiate with vacuums all done but I don't know how to check the fuel pressure do you have a chance can you tell me

[@Nina_39-c5l]

hey men....how you doing....i have am bmw 325i 2002 and having this P0051 O2 sensor (Sensor 1 Bank 2) low signal....but i just replaced it and is total new......how can i fix it....?

[@ludgierr]

The dealership keeps telling me that my O2 sensors are good, but inspection says "Not Ready". Dealership says to keep driving it but I've already driven about 50 freeway miles and still keeps failing. They're not telling me how many miles i need to drive it and the inspection keeps reading "Not Ready". Should I keep driving under certain amount of miles or just replace them?

[@nicknicu1787]

YES! More Euro please! You need an Autel Maxisys,much better for European!

[@mastertech8306]

I'm curios as to why the PCM read the signal as 5 V when you testlight was connected to battery voltage.

[@Wolf-yc2nx]

Very helpful..!

[@raymilligan9556]

B.M.W= Broken, might work?

[@MichaelLesesne]

Jealous much

[@JC-wh9pj]

BMW= Brake My Wallet

[@RJC3po]

what turned out to be the problem with the cyl6 misfire and fuel codes?

[@pinpointautomotiverepair1592]

Not sure yet mate. It is a friend of mine's vehicle, and I didn't have time to check out the misfire. I'll let you know if I get it back in, and maybe do another video of that issue.

[@c6gav]

Well I thought the misfire on cylinder 6 was caused by the o2 sensor..?

[@jamaalbey6306]

I just replaced both before the cat I was having the cylinder 6 misfit fuel cut off. 2002 325xi

[@markferraro5250]

excellent video joe thanks

[@chrisellwood3523]

I replaced an inactive sensor and it still says sensor inactive. Lean codes too

[@ytfeverguy8367]

I am having the same issue on my 2004 bmw x3 e83. I was throwing 0174 (bank 2 lean) and used aftermarket sensor. Not sure if computer is reading the sensor. Did you solve this?

[@Kirawolf1971]

I had the same problem right after installing a new O2 sensor. It was a dirty ground strap. Clean ALL ground straps and any other ground wires under the hood

[@KKE1978]

Please someone help. My fuse in the DME fuse box keeps blowing out. I have visually checked all the wire and they seem ok. My bmw is 2003 530i i dont think it has the angle connector so am stuck on what to do. Please anybody help.

[@nicknicu1787]

The dealer recommends replacing all 4 O2s at 100K miles. An 1K $ endeavor in parts alone.

[@cossieconnoisseur]

£120.00 in the UK for all four. Shop around for parts and be aware that dealer prices can be extortionate! The whole job (provided the sensors are easy to remove from the exhaust) should not take more than a couple of hours. Also remember to mark the leads if you are changing all of them at the same time! A 2 post or 4 post lift makes the job a lot easier as does the correct tool for removing the sensors!!

[@jackrankins6272]

Lol false they are 130-140USD A pop

[@RL-xb4gz]

I'm looking to fix 2005 tomorrow.

[@ericwilson7960]

Im having the same problem with my 2002 Yukon denali do a video

[@jomarrodriguez5849]

Can you provide the scanner info... It is pretty legit... I would like to buy it.

[@SirGipsy]

Engine Fault code: P0056 Fault code: P0130 Fault code: P0160 Heated Oxygen Sensor Heater (HO2S) - Circuit Malfunction (Bank 2 Sensor 2) O2 Sensor - Circuit Malfunction (Bank 1 Sensor 1) O2 Sensor - Circuit No Activity Detected (Bank 2 Sensor 2) Bmw 320si e90 n45 2006

[@_Philip_.]

How did you fix the heating problem? My o2 sensor are not getting enough heating

[@nonyabiz2777]

Nice work.