right, job done! crank sensor replaced with a brand new genuine fiat/alfa one. And what a nightmare it was!!
Overall, it's taken me about 4 hours, yes, 4 hours to get one little bolt out and unclip the cable.
BIG thanks to RGWM for your help over the phone
- certainly gave me a better idea where the damn thing was!
So, for future reference if anybody dares take the job on (sorry, no pics):
2.0 TS engine CF3.
Location of crank sensor - Directly beneath starter motor, on the edge of gearbox/engine casings.
1. Remove intake pipes.
2. Remove battery. (optional - i did purely for accessibility).
3. Remove throttle body (4x T30 torx bolts).
4. Remove plastic engine cover (4x T30 torx bolts).
5. Unclip crank sensor cable - On top of intake manifold, right-hand side, BROWN connector.
6. Unclip cable from all retainers. (easily accessed if battery and TB have been removed).
From underneath of car:
7. Remove exhaust front pipe (2 pre-cats on CF3 engine - this is recommended as i didn't and ended up with rather painfully scraped up forearms and a numb hand at the end).
8. Sensor bolt can be just about seen looking past the NSF sub-frame mounting point.
9. Sensor bolt was a small torx bolt on mine (can't remember size), others may be allen bolts.
10. Remove single bolt.
11. Wriggle the sensor out, making sure to pull the sealing ring out with it.
Do all of the above in reverse for placing the new sensor. Make sure to lightly grease the new sealing ring to ensure it fits snug without twisting.
I hope this helps anyone who has the same trouble.