Suggestions for Crankshaft Sensor

[Gibla]

Well miffed the last couple of days. Tried to go out and give 'superblue' a run yesterday(local of course!), a nearly flat battery put paid to that ambition.
Charged it up overnight + of course then started 1st click, went about 7 miles smoothly and uneventfully and just about got the car warmed up when all hell broke loose.
Loud bangs, stuttering and eventually ground to a halt in a poor place on double white lines on the main trunk road from North to South Wales (A470)
Luckily I had my phone with me and a reasonable signal, so as I am a member of the AA by virtue of my bank account:- decided to call them
Without going into the ensuing fiasco in detail, the AA did eventually decide to send out a 'partner garage' mechanic from over 40 miles with an eta of 1 hour. Luckily, after many attempts the car spluttered into life, occasionally running smoothly, but mostly with vastly reduced power and generally running awfully, I managed to move the car into a much safer position to await the mechanic.
After a short while after arriving he diagnosed it was the crankshaft sensor playing up( much to my relief as I had thought it could have been the ECU).
Sooo after the long winded story, I have briefly looked online for this sensor......can anyone recommend anything in particular?
This states it's compatible https://www.ebay.co.uk/itm/333760277088 < anyone ever use this manufacturer?

Sorry!! posted this in the wrong category. Moderators, please move into the correct place please

An annoying 24 hrs!!

[Carolyn]

Not familiar with that brand.  It does look like the right one though.

[Call the midlife!]

Just an observation on it but often it's just a bad earth with the crank sensor as it sits in the salt and spray from the road and corrodes, might be worth cleaning the contacts up and giving it a spray before changing altogether?

[jonbill]

Alan, did the AA man get an obd2 code from it for the crank sensor, or did he just think the symptoms from lt like crank sensor? if the latter, it might be worth checking that the t-tap connectors to the Speeduino are all properly seated.

[Gibla]

Good point @jonbill, no obd used, just symptoms. The ever-changing nature of how the engine was running was very odd, once it would re-start(which was haphazard) run for seconds very roughly and stall, or run quite normally for a few seconds then go to a fouled up running where the engine would struggle to 1500 rpm and be on the point of stalling + then pack up altogether again.
Will check the t-tap connectors you mention and the contacts from the sensor itself mentioned by @Call the midlife! ......thx folks :-)

[1979scotte]

Alan, did the AA man get an obd2 code from it for the crank sensor, or did he just think the symptoms from lt like crank sensor? if the latter, it might be worth checking that the t-tap connectors to the Speeduino are all properly seated.

I agree with both the John's.

Clean up the crank sensor and check the after market electronics.

[Carolyn]

I was afraid something might come up that requires specialist knowledge that the average repair bod might not have.. It's the nature of a project like this.

I would tend to discount the crankshaft sensor idea, mostly because they are very reliable and that engine went in clean not that long ago - it certainly hasn't had time to build up any corrosion.

Without an OBD reading -the guy is giving it his best guess.

The intermittent nature of the problem indicates a loose connection to me.

May I suggest being a little patient and casting about for someone locally who would know what it is they're looking at.

[Call the midlife!]

Aye, to be fair I was just spitballing on the strength of the actual post without taking the background into account so the usual suspects don't apply.
A sticky IACV wouldn't necessarily give all those symptoms either, even though it's been stood a while.

[Carolyn]

Also - while she's parked up:  There's an isolator on the battery.  Pop the engine lid and slacken off the knob and it will avoid a flat battery.