Update:
Yes, I can definitely hear the IAC buzz when the key is on pos II

My lack of mechanical knowledge is gonna start to be pretty blatant. I have to admit not knowing what the idle air control or PCV is or their purpose. When I changed the cap, it was rather clean and oil free, same for under the spark plug cover. I don't have the necessary equipment for a smoke test ...

Update:
As of yet, the only code popping up on my dongle is the stupid secondary air system. Soon as I have some free time, it's getting deleted.

I will do some research as to how to check the idle air control and vac lines. Having nothing to go on really, it will be next in line for a thorough check up. My buddy has since left this line of work. He worked at a rather crappy garage in Montreal, sometimes outside in the winter, working for emp...

Thank you very much for your input, I very much appreciate it. Let me clear up some of your queries. The 'shivers' were present before and after the ignition work. The reason I know about the misfire codes in my car is because I bought an ODB-II ECU reader on Amazon and using it with the Torque app,...

Hello Volvo enthusiasts! This is my first time ever posting on this forum, but this forum has always been very useful and helpful to me. I am the second owner of a base red Volvo 1997 850 Manuel wagon. The original owner is my mum and she has taken good care of the old thing and I intend to do the s...