Jump to content
View in the app

A better way to browse. Learn more.

Bimmer Owners Club - BMW Forum for BMW Owners

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Featured Replies

Hi guys,

Hoping i can get some help here,

I am restoring an 84 635csi and it won't start, the car has just came back from the paint shop, it was running when it went in but won't start now.

Started checking it out today and i have noticed that the crank sensor at the pulley is not plugged in!

my problem is that i can't find where it plugs into and the other thing is there is no plug on the end just 2 wires (black and yellow i think).

i'm wondering if someone could post a picture of where this plugs into, to at least give me some idea of where to start looking.

Thanks

  • Author

o.k cancel that guys, seems like the wires from this sensor go to the diagnostic plug,

can anyone tell me how to test the crank sensor?

thanks

Have you reconnected it? Seems like it wouldn't start in the paintshop and they tried to "delete" the CPS to start it (dicks)...

You'll need a multimeter to check impedance across wires 1& 2 (check in service manual what the value should be).

Sometimes simply cleaning and refitting cures it !!

  • Author

Hi jack, thanks for the reply. I'll try not to bore you with my story, keep it short as i can.

car comes back from the paintshop, won't start, no spark, checked all the usual suspects, coil and relays etc etc,

searched the net, found how to test the reference sensor and the speed sensor, both checked out o.k.

called bodyshop, he then tells me the car sat outside for a few weeks because he had no space (now he tells me).

removed ecu from under the steering column, FULL of water!!! made a few phone calls to company's who deal with ecu's. mega money!

removed cover, put in airing cupboard overnight, fitted to car today and it fired up!! only on 3 or 4 cylinders.

removed plugs and all were wet with fuel, so dryed them out, gave them a quick scrub with a wire brush refitted them and it's running like a dream!

it's in my garage now, it'll be kept dry until i get the sunroof drains cleaned out and i think i'll put a new windscreen in it.

thanks again for your help, i'm off to get a lottery ticket lol.

Davie

Me n you sharing ?

Latest Deals

BMW Official Store for genuine BMW parts & accessories

Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via eBay links

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...
eBay disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase you make on eBay via the club.

DISCLAIMER: Bimmerownersclub.com is an independent BMW car forum for owners of BMW vehicles. The club is not part of BMW nor affiliated with or endorsed by the offical BMW AG in any way. The material contained in the forums is submitted by the general public, and is not endorsed by Bimmer Owners Club, BMW AG, or Bayerische Motoren Werke AG. The official website for BMW AG can be found at http://www.bmw.co.uk
Background Picker
Customize Layout

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.