BMW Random Stalling Issue Solved! P0340 Intake Camshaft Position Sensor 

thanks for verifying!

what year

Where did you buy your sensor? I would like to know thanks

Ankle??

@@dantheman1337 translate error :) I mean that connection hub with that Spring ( that Spring you must to Press to deconnect)

Daniel Herriott thank you Daniel, happy to have helped!

So great to heare that Johnny! Thanks for watching and commenting.

BIMMER ZEIT From UK

thanks for sharing this story - hopefully it helps someone else as well!

If your cam sensors are original (intake and exhaust) and your miles are getting up there, I'd definitely recommend changing them out at some point as part of maintenance. As for your revs dipping, make sure you don't have any air intake leaks causing that and the tune up is up to date. There are many variables at play that can cause similar symptoms so diagnose slowly and carefully before buying a ton of parts!

i have same issue e39 530i. revs dropping low.sometimes car starts normally,sometimes it takes time to start, sometimes it drivers normally, sometimes it looses power and vibrates, changed camshaft sensor (wired), it's still the same, i'm going to replace crankshaft sensor and i'll try cleaning maf sensor. checking for air intake leaks is also a good idea, If you have solved the issue please reply.

Name Less have you found the solution???

Would your 4x4 lights pop on and off when it was acting up?

@@funkdoktor9099 No, it’s not suppose to. The check engine light doesn’t really come on either. That’s what makes the diagnosis kind of hard.

You're not really going to hear an audible difference in how it is running. As for showing the stalling, it was intermittent and hard to catch on camera.

Did you ever figure this out? I’m having same issue

I’m having this issue as well and I keep getting a fuel pump notification on the screen but that’s been replaced 2 times now. If you figured it out I’d like to know! Hope you got it running right.

@@foxchase1993ugh same :(

​@@victoriarose7528 Hey Victoria. It was the battery cable under the car, specifically at the BACK, under the battery. There's a fastening skrew below the car under the back-trunk, a red cable that ends. It's this ending point that is loose and rusted. (Because the cable plastic is exposed at the end) So there's corrosion buildup there. I cut it off at the end (a little piece) sanded the contact point around the bolt. Got a new cable shoe(at a boat shop) And fastened it with pliers. Also using crimping wire cover to melt it over the new cut wire. To paint a visual picture for you: There's a red cable stretched across the car, from the front hood, to the back trunk. A very long red battery cable. It's this cable that is having poor contact at the back of the car under the battery. You need to make that contact point(and cut off a little piece of the corroded cable) where it is corroded. And give it a new metal cable shoe. The Cable has leeway to pull more cable to the given area, so you don't need a NEW cable as the car shop would have it. This problem is THE NUMBER #1 problem on these cars. They even have a list of top issues on the Tool they use at the shop. Where every make and model has a list of known issues. This is literally nr 1 issue at the very top. Here's what the cable looks like and that metal shoe. (You don't HAVE to solder if you clamp the metal shoe tighly on the cable). ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CccZY6vnpo4.html&ab_channel=FIRSTCLASSAMATEUR

Wayne 416 thanks man happy to hear that! That sensor is so hard to diagnose and not safe when it begins failing!

Did you buy a oem part???

William Avery thanks bro!

Sawier yeah I got the same problem also stalling on cold start and the odd time when the cars hot

off brand sensors dont work

shit oem knock off made my car worse

Did it fix the problem?

Yep. My dad still has the car. It’s good.

@@BIMMERZEITT Thanks.

mine did it today - bmw x3 2.5i petrol

brian.dudek this is a 2001, but procedure is same for all m52tu and m54

Hey I would suggest changing both camshaft sensors, intake and exhaust. Yes exhaust cam sensor code means the sensor

Pressing the brake puts more strain on the battery/ engine because it puts a strain on the brake booster. You may notice that lights dim when you turn the steering wheel or press the brake for this reason.

No I don’t recall that it did. You might have a different issue. What year and model car?

The car would stall out (engine shuts off) at slow speeds (parking lot driving) and at stop lights.

Chadd Yuan Could your issue be the immobolizer? 7 months late but hey, thought i’d write anyway

if your car takes several tries to start it could be the fuel pump

I'm not sure why the sensors fail in this way, but it definitely is intermittent which makes diagnosing the problem take so long. Glad to hear this video helped you out!

Could be the idle control valve is sticking. You can remove and clean it with brake cleaner or similar. Probably the problem is there the whole time but in the mornings your car is running on the cold start map so more fuel less air and it masks the issue. Normally the symptoms of cam sensor are just poor torque.

Had that problem i think mine as crankshaft sensor

And yes it is the same car that's in the profile picture

Could be working still... sometimes aftermarket bulbs have too high resistance and will set the light in the dash, even though the bulb is lighting just fine... Not saying this is the case for this guy (although it could be) , but figured I'd throw it out there.

A M52 engine will still start even without a cam sensor.

my car started like that also it would randomly turn off i would give it a little while and it would run again. Now tho it will not get far and turn off and it will literary take hours before it starts again and it will turn of every 5 minutes i got it come at 5 mph :(

Adrian Xzyx could be fuel pressure related, nothing to do with the cam sensor. older bmw's had a non return valve in the fuel line that would fail and lose all fuel pressure so every time would be like trying to start after running out of fuel.

crankshaft position sensor

For the non starting sure but isnt he talking about a lack of power also? For sure crank sensor just for the non start is a good bet.

You can reset it yourself bro you need an obd-ii scan tool like the creator c310 check my videos for “best bmw scan tool”

Did you fixed that problem??

Fabian Dee he said the engine type which is all you really need if worried about the model

Richard if the code is still coming back, it is possible the sensor you installed is defective. I've seen it plenty of times with various sensors, as most are made in Eastern Europe, Mexico or China these days. I would recommend returning the sensor and exchange for a new one. That seems like the most likely scenario to me.

did you scan the car?

Did you ever find out what the problem was? same problem here

There are two crankshaft sensors on the 2003 BMW 525I. There is one on the top of the engine and the second crankshaft sensor is on the lower left side (passenger side) of the engine. You have to replace both so the stalling of the engine will stop completely. Good Luck!

Problem is u need genuine bmw sensor cheap sensor wouldn’t work trust me

The crank sensor

looks pretty decent, you should paypal him 10$ for a new one since you want him to change it

🤣

Your 318i has cam sensors yes but probably a different part number for your car. You can check Amazon, eBay, FCP Euro, Bavarian Autosport - shop around for the best price. Check realoem.com to find part numbers.

Thanks! I did some price checking, and there is everything from $21 to $145. Does it matter if it is a genuine part made by BMW, or is $21 from China even safe? Is quality something to look out for? Sorry for all the questions, this is my first try at fixing something on my car.

Thanks Kyle; P0339 should be the crankshaft position sensor fault, not the camshaft position sensors. The crankshaft position sensor is lower down on the motor by the block on a mounting bracket. The camshaft position sensors are up top in the cylinder head. It's easy to mix them up when reading online though because we use "CPS" abbreviation for all three!

I'm new to this, but the fix looks straight forward. Finding which part to swap out seems to be the issue. I think that RealOEM.com is calling it a "Pulse Generator, Crankshaft" for my 2002 e46 M54. I got to do a little more research before I start ordering parts.