by Callicil » Tue Dec 15, 2020 3:23 pm
I really appreciate all the info you have all given me. I will definitely be looking into the options posed to me in the replies. I'll see what happens after they've carried out the upper engine clean (Doing it at the same time as the diagnosis).
While writing this I had a call from Subi, and they have informed me that it should have a MAF, but since it doesn't, they are not worried (Which does not put my mind at ease to be honest), but the throttle body is seriously filthy. So I'll see if that makes a difference, and if not, from what I've read, i'll do a vac test next, as the symptoms I have seem to be synonymous with a vac leak / dirty MAF, of which, the latter does not apply to my car.
That is definitely a list I can source through work bigBADbenny, so I will definitely look into it, and also great advice about getting the report in full from them.
BillyCorgi, when I was chatting to the service guru at Subi the other day, I gave him the VIN from my vehicle, and according to his system, he said it was showing that my model should have a MAF sensor, as did NAPA and Tridon through their parts system. But looking at the image you have below, that is the exact layout of mine, so I'm siding with you on the info you posted, which makes a lot more sense than someone modifying the pipe and also the ECU to remove the need for the MAF.
--Update--
I'm too lazy to modify the post (I was meant to post this on Monday, but got sidetracked). They've done a top end clean, and it's running a lot smoother now. Not as much as I would like, but definitely a noticable difference. But again, I thank you guys for your info, as it's something I can work on as I go to try and improve the performance even more, and now that I know the model specifically (VIN did not mention it was the KA variant), I know what components I have to work with.