Irregular spark after replacing engine

[Axelstromo]

Hello all. Recently I replaced the engine in my IS200 after an engine failure. The new engine will not fire up and I have narrowed it down to the spark. Here is a video of the spark plug while cranking and you can see that it doesnt spark at regular intervals.

https://imgur.com/a/OXgHQJp

I've tried other spark plugs and coilpacks but it is still the same. I have measured the resitance of both the cam and crank sensor and they both show to be in spec. I also cleaned up the ground wire from the engine to the Battery but that didnt help either. The only thing left I can think about is the ECU, but considering that it worked with the old engine I'm sceptical that it would be the culprit.

Does anyone else have anymore ideas? 

 

[Jon Dee]

Have you checked the position sensor clearances from the trigger wheels ?

[Axelstromo]

Checked the clearence to the sensor which was about 0.8mm. I did see that some of the studs of the trigger wheel had almost rusted away completely.

Will change the wheel and see if there is anything else wrong.