Mine looks to be the G13BBas its the alloy top version. Where exactly is the cam sensor located? I've bought one now I just need to find it to fit it?

Hi, I'm new to the forum and I'm a new Jimny owner, In short I'm after 2 things. Firstly how do I identify what engine is in my model/year Jimny. Secondly I have a engine troubles. The last couple of trips out in the Jimny it has displayed the same symptoms, Gets hot, fluctuating RPM, stuttering jud...