Author Topic: How to check cam/crank sensors???? (Read 11142 times)

mk2vr6 · « **Reply #15 on:** January 12, 2010, 11:33:36 PM »

Just went through this ordeal, IIRC you have to test between pins 1 & 2 on the plug (could be 1 & 3, but I don't think it is). Changing the crank sensor is a mild PITA.

I got the new sensor at autohausaz.com for $66 shipped, it works perfectly.

http://sd.autohausaz.com/autohausaz/detailw.jsp?sid=vz4jqs55w200zo45ur2fuqyl&partner=autohausaz&product=W0133-1662132

RED IS 91 · « **Reply #16 on:** January 13, 2010, 05:11:04 AM »

Quote from: longms;84514

crank sensor at dealer was like $225:eek:...found one at partsgeek for $60...i believe it is a Delphi brand...is this a good brand?

I just showed you a few post above how to get one at bavauto . Don't go cheap on these cars or you'll regret it.

longms · « **Reply #17 on:** January 13, 2010, 09:51:15 AM »

Ordered the part from partsgeek and it should be here tomorrow. Cross your fingers and wish me luck...anything else I should address while I have the car up on jacks for this issue?

3bvert · « **Reply #18 on:** January 13, 2010, 10:01:09 AM »

sounds like you have it covered for all the things I can think of while car is up, your sig reads like it has all been gone through .
let us know results
good luck

longms · « **Reply #19 on:** January 14, 2010, 07:40:58 AM »

haha...thanks

Any tips for replacing the crank sensor? Anything that I should know that might save me a headache???

DesktopDave · « **Reply #20 on:** January 14, 2010, 09:14:19 AM »

Pull off the A/C bracket totally, not just the A/C compressor. You might look at it and think it's possible to leave the compressor mount on...but it isn't. Awful design from BMW. That's the only big trouble with installing it. Also, don't bend the wire around too much. It's shielded cable and will fail if the shielding breaks.

Test the brand new sensor too. They'll give you flack about returning an installed sensor. Some have failed right out of the box...you'll be able to get a new one if it hasn't already been installed.

Make sure the little plastic channel bracket is right (it's on the passenger side of the motor), or the fan belts & pulleys might chew your new CPS cable up. Mine was loose, bolt fell out & the bolt/metal standoff was pressed into the front case!

longms · « **Reply #21 on:** January 14, 2010, 09:39:53 AM »

Thanks for the heads up on the A/C bracket. I will for sure test the sensor. I am assuming just check the resistance?

DesktopDave · « **Reply #22 on:** January 14, 2010, 10:43:17 AM »

^^^Yep, just resistance, unless you have an oscilliscope & bench PS handy.

longms · « **Reply #23 on:** January 14, 2010, 12:48:23 PM »

That i do not...I managed to see about 875 ohms or so on the new sensor

DesktopDave · « **Reply #24 on:** January 14, 2010, 01:35:53 PM »

Dicey. Seems a bit high to me. I'd wait & see what other members have to say...I haven't had to replace mine yet so I feel uncomfortable giving a 100% answer.

longms · « **Reply #25 on:** January 14, 2010, 01:43:09 PM »

Hmmmm....I will check again when I get back from work. I checked quickly on my lunch break.

longms · « **Reply #26 on:** January 14, 2010, 04:25:16 PM »

876 on the dont...she is going in...I talked to a few people and they seem to think it will be fine.

Wizard · « **Reply #27 on:** January 14, 2010, 06:42:40 PM »

876 is fine.....My new one (actually second new one as first brand new one tested low--543) tested out at 900....I was a little concerned also but car fired right up and no problems since...

longms · « **Reply #28 on:** January 14, 2010, 06:47:49 PM »

Car fired right up and idles better and takes less time to start now. If only I would have known about this stupid distributorless ignition system.

Thanks for all the help guys and I am now the happy owner of a running 318is

Wizard · « **Reply #29 on:** January 14, 2010, 06:53:22 PM »

Now all you need to do is clean up the mess under the intake, COP kit, bigger injectors, electric fan conversion and.....Never mind....The list is endless....