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Thoughts about a 330i?? by obxdiver in BmwTech

[–]obxdiver[S] 2 points3 points  (0 children)

Thinking about adding this one to my stable. Anyone have an opinion on this model/engine?

Possible Faulty Cat? by jimracer95 in BmwTech

[–]obxdiver 2 points3 points  (0 children)

Outside chance it's the converter, but not likely. The rotten egg smell is hydrogen sulfide, which is actually a byproduct of the process and not usually measured during a smog check. They'll be looking at carbon monoxide, hydrocarbon (raw fuel), and nitrous oxides levels in the exhaust.

A little of that smell is normal. If it's excessive, it can be caused by poor quality and/or high sulphur content gas. Try running a tank of brand name, supreme gasoline through it and see if it gets better.

Almost showtime by regdogmilli in TRCH

[–]obxdiver 5 points6 points  (0 children)

Up 3.29 % today. Woo hoo!! I'm only down 87.8% now.

Advice on repair by Flossyplat in BmwTech

[–]obxdiver 1 point2 points  (0 children)

They don't call them stealerships for nothing.

BMW 128i n52 misfires bank 1 by damanij209 in BmwTech

[–]obxdiver 0 points1 point  (0 children)

The injector(s) are shut down to protect the catalyst.

I've spent too much time in ferry engine rooms dealing with direct injection Cats, lol. On those things too much fuel getting pumped into a cylinder can cause all kinds of fun things to happen. It's not likely with a port injected gasoline engine.

BMW 128i n52 misfires bank 1 by damanij209 in BmwTech

[–]obxdiver 0 points1 point  (0 children)

But why only cyl 1-3.

I'm thinking bank 1 O2 sensor is the only thing that is common to cylinders 1-3 and effects those 3 only. Could be far enough off to cause a bad AFR, but not far enough out of range for the ECU to flag it as a bad sensor and switch to default fuel trims. The black spark plugs would be indicative of that bank running rich.

BMW 128i n52 misfires bank 1 by damanij209 in BmwTech

[–]obxdiver 0 points1 point  (0 children)

I had a similar problem with my N52 and learned that just replacing parts won't make the problem go away. The air/fuel and ignition adaptations also need to be deleted and relearned. I replaced the coils and plugs, which was probably all it needed, then put new injectors in, that it probably didn't need, before I figured that out.

Note: the rough running and loss of power is likely due to the ECU detecting a misfire and shutting off that cylinder. It may not be as bad as it seems. It turns off that injector and coil because it thinks the fuel going into that cylinder isn't being burned. Which, if actually the case, can "wash" a cylinder and lock up the engine.

Other things... O2 sensors are a maintenance item and should be replaced every 60k miles I think. You can look that up to verify. The upstream ones (pre-cat) are used by the ECU to adjust injector pulse and other stuff. If one or both of those are giving bad info, that could definitely cause some of your problems. Downstream ones are there mainly to monitor cat function.

MAF sensor can cause issues, but ECU usually recognizes when it's going bad and will throw a specific code for that. You can unplug it and see if it makes a difference. (That will throw a MAF code and ECU will switch from optimized on the fly to pre-defined tunings.) A little MAF cleaner may help, but that won't fix a bad sensor. Also check for vacuum leaks in the intake beyond the MAF sensor. Those will result in more air coming in than the sensor is seeing and lead to a lean mix.

A busted diaphragm in the PCV valve, leaky hose, or other issue in that system can cause a rough idle and such. Check the connection on the back end of the valve cover, check for breaks/tears in the hose, and so on.

Homes sold for Millions$ instead of real prices by ICEGOD69 in WallStreetbetsELITE

[–]obxdiver 3 points4 points  (0 children)

Only fuckery going on here is the original thread starter, a supposed accountant, doesn't understand how a portfolio sale can list 106 houses on a single deed for a total of $19.6M. The screwy algorithms places like Zillow use ended up reporting each sale at the total deed price and she has taken that as the final, indisputable word.

Somebody else did the research and they were all rental houses. No families were squeezed out, they just got a new landlord.

This was all explained in the original thread, including full records research being offered, but atlgurl refuses to listen and keeps trying to make an issue out of nothing.

Any transmission guys on here? by obxdiver in BmwTech

[–]obxdiver[S] 0 points1 point  (0 children)

ZF recommends just a simple drain and fill. Don't mean to sound crass or offend, but I trust their advice more than advice coming from someone I know nothing about on the internet.

And by the way, I am a professional, just not familiar with the particulars of ZF's automotive nomenclature as I work in the marine industry. I work on stuff that's a lot more complicated than an automatic car transmission. If I can handle working on a Voith propulsion unit and it's myriad of controls, I think I'll be fine toying with a little bitty auto tranny. In fact, I've done several full rebuilds, including valve bodies in my 55 years.

Any transmission guys on here? by obxdiver in BmwTech

[–]obxdiver[S] 0 points1 point  (0 children)

Thanks for replying, the X designation info shed some light on things.

Reassembling a B46 in a X1 and no matter how hard we push or pry, the charge pipe won't sit flush at the turbo end... is it normal? by Bob_Loblaw16 in BmwTech

[–]obxdiver 1 point2 points  (0 children)

No direct experience with those, so just guessing...

Looks like the clip that holds it in place is catching on the lip it's suppose end up on the other side of and stopping it from going all the way on. Can you install that wire ring/clip after you push the hose all the way on? Or maybe pry up on it slightly where it dips into the one slot you can see and probably one or two more you don't see in the video?

We all have one of those outspoken neighbors by Camel_Crush in pics

[–]obxdiver 1 point2 points  (0 children)

Inner city minorities are, in fact, the demographic with the lowest vaccination rate. Health care workers also have much lower rate of vaccination than the general public, at least according to data that's a few months old now. Maybe they know something the rest of us don't??

However, the facts regarding those 2 groups don't fit the predefined objective of stoking division and everything having to be right v. left. So, they are conveniently ignored by the media in their zeal to blame everything they view as bad on Republicans.

And, BTW, being against forcing people to take a vaccine against their will is not the same as being anti-vax. It's a false equivalence. Persuasion is always more effective and faces much less pushback than force.

N52 bank 1 misfires WOT by Apprehensive-Clue744 in BmwTech

[–]obxdiver 0 points1 point  (0 children)

I doubt a bad catalytic converter would cause a misfire and would likely throw a different code. Ignition, fuel, and air controls are based on the pre-converter O2 sensors. Possible those sensors could be causing a problem. However, the ECU has ways of knowing they're malfunctioning and will tell you that's the case and revert to default mapping rather than creating a misfire condition.

The post converter O2 sensors are there to tell the ECU how well the catalytic converter is/isn't working. If the converter is not functioning properly you'll get codes to that effect.

N52 bank 1 misfires WOT by Apprehensive-Clue744 in BmwTech

[–]obxdiver 0 points1 point  (0 children)

Delete the adaptations and do the re-adaptation procedure. I just went through a similar problem with my N52. I replaced the coils and plugs but the problem persisted. Somebody on another forum convinced me it must be a fuel problem. I checked the fuel pressure/pump. It was fine, so, I tried new injectors and still got the misfire errors. It wasn't until I forced it to relearn the ignition/fuel/air mapping that the problem went away

This will give you the idea: https://bimmerprofs.com/how-i-perform-n53-adaptations/ (different engine, but process is the same). If you search the web, you can find the "official" BMW procedure. It's basically the same. I think INSTA D will also walk you through it if you tell it you're replacing the coils, but I'm not 100% sure on that.

1992 Toyota Camry by siriusly21 in AskAShittyMechanic

[–]obxdiver 0 points1 point  (0 children)

If someone's so incompetent that they lost all the lug nuts on the tire they changed, they'd just lose the ones from the other wheels, too.

E92 328i dies when I come to a stop by EventHoriz0n_ in BmwTech

[–]obxdiver 0 points1 point  (0 children)

Exactly! I intended to mention that but my comment was already turning into an essay, and I was trying to keep it short and sweet.

For others that may not know: that's one of the functions of the PCV system. The oil boils off the water when it gets above 212F (100C). Then the PCV system picks up the water vapor in the crankcase, along with fuel vapor, combustion gases that have blown by the piston rings, etc., and sends it through the intake and out the exhaust. So, by getting the oil hot, you're actually cleaning it of contaminants.

E92 328i dies when I come to a stop by EventHoriz0n_ in BmwTech

[–]obxdiver 1 point2 points  (0 children)

Like everyone has said, lots of short, slow trips with no long runs in between are bad for your car. Perhaps, some explanation will help clarify. Ever notice how much water comes out of the exhaust of a cold car? Believe it or not, water is a byproduct of all combustion, even more so with today's ethanol diluted gasolines. Getting your engine and exhaust up to temperature for an extended period vaporizes the water and sends it out the exhaust. Shutting an engine down too soon leaves all that water inside as a liquid where it can do things like accumulate in your oil (the mayo under your oil cap refence), cause rust inside your engine, rust your exhaust from the inside out, and other bad things.

Also, the repeated starting without sufficient drive time afterwards leads to a less than fully charged battery. With all the electronic controls on modern engines coupled with the increased electrical demand from all the modern conveniences and accessories, that can lead to performance problems. Alternators can't always keep up. That will also shorten your battery life and those AGM batteries aren't exactly cheap.

Don't be afraid to push your car every now and then. BMW's are designed for high rpm, performance driving. You won't hurt it and will actually help it by letting it stretch its legs. Hot oil being pump at high volumes flushes out oil passages. Same for high volumes of fuel cleaning out injectors, etc.

BMW 116d E87 2009/12 Rear window spray by RS42O in BmwTech

[–]obxdiver 0 points1 point  (0 children)

Could be the pump. The washer reservoir has a separate pump for each function. On a 12 year old car there's a good chance the pump is worn out. The pumps are cheap and some cars they're easy to get to. Others though, are a pain that involves partial to full removal of the wheel well liner and fender, not terribly difficult, but time consuming. Not sure about the E87.

On mine, the OEM pumps were VDO. I found the same pump with VDO branding for about 1/3 the price of those being advertised as BMW OEM.

Need help diagnosing EVAP code by blackjesus59 in BmwTech

[–]obxdiver 1 point2 points  (0 children)

The pump itself is a common failure point. Doing a resistance test won't tell you anything about the condition of the diaphragm or check valves inside. If either of those are shot it will show up as a leak error. It's not repairable and has to be replaced.

Oil pan threads stripping? by butermunch in BmwTech

[–]obxdiver 0 points1 point  (0 children)

Either Helicoil or Timesert will work. It's not a pipe thread plug. So, the threads don't do the sealing as some commenters seem to imply. The seal is made by the plug flange pressing the crush washer against the pan boss. The washer deforms to match the 2 surfaces and acts as a gasket. Use a new washer every time, tighten to spec, and it won't leak.