Flywheel sensor or Alarm?

[Zim1]

Hi guys , My v6 wouldn't start after a 15 min shopping trip to Sainsbury's. The RAC man's computer showed only 1 fault code (barring the missing cats!) ... Crankshaft position sensor. He removed it , cleaned it , cooled it down? but to no avail. We towed it home andthe engine just turns. However , I've been hearing 3 loud beeps after I set the alarm recently and after the towing trip it made one huge one ... I had to disarm the alarm manually with the LED/ignition
I have recently activated the Tracker and from past experience the 3 loud beeps on performance cars do indicate some unhappines with the Tracker systems.
I also know that the tracker is directly linked to the Cat 1 alarm and the coded ignition key.

Would tracker have an immobilisation on this sensor , making it read as a fault to the cars diagnostic computer?

I've ordered the part £52 but it is electrical and therefore non-returnable so I'm taking a bit of a gamble ?

The ECU and inlet are modified but It starts very well and am pretty sure it's nothing to do with this.

No service lights are up prior to incident (and I know they work) ... the 1st attempt outside sainsburys it started momentarily then died , subsequent attempts(over time) resulted in a couple of cylinders almost firing then died now the engine just spins



Any Ideas?
Thanks JJ

 

[Banjo232232]

I've experienced the long beep when resetting the immobalizer when the batteries been disconnected. The beeps can happen if you try to set the alarm with say the bonnet open.