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Old 11-13-2012, 03:11 PM   #1
HBizzo88
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Crankshaft sensor Blown AGAIN!!!!

2002 330ci

So I don't know what to do. Maybe one of you have ran in to this problem. Car started running rough as all hell, yellow brake light came on along with the dcs light and check engine. So hooked up my peak tool and came up with a couple codes that are common when the crankshaft position sensor fails. So I changed that out, Car ran perfect.

Now after a couple weeks of driving, the lights are BACK on and is running rough, I assume because the timing is off due to the sensor.

I do not want to keep changing these things out. It's somewhat of a bi*ch. I just want to know what's causing the sensors to burn up.

The car does have an aftermarket turbo, and yea I do tend to get on it quite a bit.

Would just like to you guy's advise before i go to the garage and have to spend a heap of cash.

Thanks.
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Old 11-13-2012, 03:18 PM   #2
///MPR77
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Sorry to hear.

What are the new codes?

As I remember you replaced the intake cps...what about the exhaust side, has it been replaced too?
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Old 11-13-2012, 03:26 PM   #3
HBizzo88
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Code:
19
F4-crankshaft sensor
53-flywheel adaption segment timing faulty

I only changed the one on the rear right side of the engine (by the starter).
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Old 11-13-2012, 03:28 PM   #4
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Originally Posted by ///MPR77 View Post
Sorry to hear.

What are the new codes?

As I remember you replaced the intake cps...what about the exhaust side, has it been replaced too?
^^
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Old 11-13-2012, 04:01 PM   #5
///MPR77
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Originally Posted by HBizzo88 View Post
Code:
19
F4-crankshaft sensor
53-flywheel adaption segment timing faulty

I only changed the one on the rear right side of the engine (by the starter).
I don't know what those codes mean off hand. You already replaced the intake cps, so with some research hopefully you will find that one is the exhaust side which is easy to replace, you probably won't need the girlfriends skinny hands to replace it, but a telescoping mirror will help.
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Last edited by ///MPR77; 11-13-2012 at 04:02 PM.
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Old 11-13-2012, 04:04 PM   #6
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Willing to help ya out man, I can send you out a new crank sensor. PM me.

Last edited by xixixi; 11-13-2012 at 04:04 PM.
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Old 11-13-2012, 04:06 PM   #7
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Willing to help ya out man, I can send you out a new crank sensor. PM me.
Thanks man but i already have a lifetime warranty on this one.
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Old 11-13-2012, 04:07 PM   #8
HBizzo88
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Originally Posted by ///MPR77 View Post
I don't know what those codes mean off hand. You already replaced the intake cps, so with some research hopefully you will find that one is the exhaust side which is easy to replace, you probably won't need the girlfriends skinny hands to replace it, but a telescoping mirror will help.
Ok thanks! Ill do some research!
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Old 11-14-2012, 06:07 AM   #9
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Originally Posted by ///MPR77 View Post
I don't know what those codes mean off hand. You already replaced the intake cps, so with some research hopefully you will find that one is the exhaust side which is easy to replace, you probably won't need the girlfriends skinny hands to replace it, but a telescoping mirror will help.
He replaced the crankshaft sensor, camshaft sensors would throw vanos codes

How was the mounting surfaces of the CPS/block ?
I knw that could cause problems if they're corroded.
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Old 11-14-2012, 03:17 PM   #10
HBizzo88
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Originally Posted by SweTurbo View Post
He replaced the crankshaft sensor, camshaft sensors would throw vanos codes

How was the mounting surfaces of the CPS/block ?
I knw that could cause problems if they're corroded.
I'm not sure. I don't know if you've ever replaced one before, but you can't really get a good look at the surface.
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Old 11-14-2012, 06:16 PM   #11
///MPR77
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Are crankshaft sensors and cam sensors not the same; my apologies if they are not.
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Old 11-14-2012, 06:36 PM   #12
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Originally Posted by HBizzo88 View Post
I'm not sure. I don't know if you've ever replaced one before, but you can't really get a good look at the surface.
I've only replaced the sensor with the block out of the car, but removing the intake isnt much work and it can save you alot of problems with issues like this.

Quote:
Originally Posted by ///MPR77 View Post
Are crankshaft sensors and cam sensors not the same; my apologies if they are not.
They are not, they're both hall effect sensors but they are shaped differently as far as i can remember.
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Old 11-14-2012, 07:17 PM   #13
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Originally Posted by HBizzo88 View Post
2002 330ci

So I don't know what to do. Maybe one of you have ran in to this problem. Car started running rough as all hell, yellow brake light came on along with the dcs light and check engine. So hooked up my peak tool and came up with a couple codes that are common when the crankshaft position sensor fails. So I changed that out, Car ran perfect.

Now after a couple weeks of driving, the lights are BACK on and is running rough, I assume because the timing is off due to the sensor.

I do not want to keep changing these things out. It's somewhat of a bi*ch. I just want to know what's causing the sensors to burn up.

The car does have an aftermarket turbo, and yea I do tend to get on it quite a bit.

Would just like to you guy's advise before i go to the garage and have to spend a heap of cash.

Thanks.
What ecu/software are you using for your car?
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Old 11-14-2012, 09:45 PM   #14
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The crankshaft sensor is a minor PIA to get in and out. I use a mirror. As with the camshaft sensors, aftermarket units are a crapshoot. My shop went through 2 aftermarket sensors until one finally worked (despite my insistence to use an OEM sensor).

Go OEM only on those 3 parts.
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Old 11-26-2012, 03:39 PM   #15
HBizzo88
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The crankshaft sensor is a minor PIA to get in and out. I use a mirror. As with the camshaft sensors, aftermarket units are a crapshoot. My shop went through 2 aftermarket sensors until one finally worked (despite my insistence to use an OEM sensor).

Go OEM only on those 3 parts.
Ya I guess you're right. Took it to a shop. They said the same thing!
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