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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 08-22-2016, 01:03 PM
rugbykev rugbykev is online now
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Mein Auto: 1998 BMW E39 520i
INPA Error 83, Crankshaft Position Sensor (Again)

Hi everybody,

I am hoping some1 can help me out.
I was having issues with my 1998 BMW E39 520i with M52 engine.

A few months back i wwas experiencing that the car would just cut out when idle.
I have INPA Daignostic software, and it showed an error on the crankshaft position sensor.
Starting it back up would take a few mins.

I bought a new sensor from a BMW dealer from ebay, swapped it and the car ran great for about 4-5 months.

Now i seem to be getting the same symptoms again.
I put the diagnostics on and again i seem to have an error with the crankshaft position sensor.

Could there be another fault thats been hidden with the crankshft position sensor?
Could i just have been unlucky and swapped with a faulty sensor?

I attach pictures/screenshots of the INPA error code.
Also I see some high Analog values for 'engine load' and 'air use of the idle control valve'.
Not sure if this is really an ssue

Appreciate your help,

Regards,
Kevin
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  #2  
Old 08-22-2016, 03:35 PM
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tim330i tim330i is offline
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Welcome to Bimmerfest! I've moved your question to our E39 5 Series forum, you'll get more help in here.

Tim
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Old 08-22-2016, 05:16 PM
nedmon nedmon is offline
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Mein Auto: 1998 528i, 1987 Carrera,
Kevin,
Check out advisory 99-e a 01. They changed the crank sensor power supply to 12 v from the 5 v from the dme. This is a BMW required change and they did it on my 1998 528i. The update included a wire harness with 4 connectors, one of course to the new design crank sensor and the other 3, all identical, connecting to the Vanos and 2 other doodads at the front of the engine by the inlet manifold. Mine were incorrectly connected and that was the cause of my crank sensor trouble. I connected mine by copying the connection arrangement on a friends car.
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Old 08-23-2016, 11:53 AM
rugbykev rugbykev is online now
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Hi nedom,
That sounds very interesting indeed. I need to search and look deeper into this then. Have you got info on the wiring diagrams?
The thing is, I swapped the sensor for the same error fault 5 months ago. After the initial swap, the car ran perfect with no idle cut outs at all. Now it seems to be back again. I drove the car today for a while. It didn't cut out but starting up is very hesitant. Same error code appears. Also, when I swapped the sensor I didn't change the o-ring, simple because a new 1 didn't come with the new sensor. So I used the old 1. It seemed to be OK. But I suppose it is not the best thing to do.
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Old 08-23-2016, 11:59 AM
rugbykev rugbykev is online now
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Correction to last message:
There was no o-ring on the previously installed sensor. I had some o-ring that I tried to best match but decided against it and left. As the previous sensor didn't have 1.
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Old 08-23-2016, 01:34 PM
nedmon nedmon is offline
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Kevin,
If tour crank sensor comes without a harness then you have the update. Look under the inlet manifold to see the harness. I don't have the instruction but a search will surely find it.
Ned
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Old 08-23-2016, 02:25 PM
rugbykev rugbykev is online now
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Thanks Ned,
Indeed it is without a harness. I already ordered a new sensor anyway.
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Old 08-23-2016, 03:39 PM
nedmon nedmon is offline
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I should have said " if the sensor comes without a pigtail" then you have the correct one. You could always check the connector to the sensor and if you see 12v, then it's correct. The lazy way to check the other 3 connections is just to swap them around. An bhuil tu as eire?
Ned
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