3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
hey i was just wondering.....I have a '01 330ci and it has a check engine light pertaining specifically to the cam position sensor.....i heard that theres a history of problems with that sensor on my year car.......does anyone know if its usually a hard sensor failure or just an indicated failure that could be corrected by taking out the sensor and cleaning the contacts, etc?
Normally, it is a hard sensor failure, but it would not hurt to take it out and clean it. If you end up needing the sensor, you can find it here. It is not an expensive part so it might just be worth replacing it.
Is there a troubleshooting guide to determine if the sensor is bad or not? (resistance on terminals) I dont mean to hijack this thread but you responded to my thread and I have a 325e 1987 with TWO sensors.
Are these identical?
Which plug on the wiring harness goes to which sensor? (color coded)?
More then likely, they are not identical. As for testing them, they work like an on-off switch. As it spins, it should send a signal like a syn wave. The faster it spins, the higher the frequency. I am not sure as to the best way to test them with out a oscilloscope.
I do have a scope. The part number calls for TWO for this model with the same number and I was told the car will run without the speed sensor but not the CAM position sensor. I will swap and test this weekend.
Does the paperwork on the sensor indicate any type of resistance between the terminals for a quick check out?
Thanks for all your help...
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