2012 Speed3 109k Mods: Cobb cold air intake 50/50 valve NGK Ruthenium Spark plugs Replaced coils and plugs back to stock, battery, and MAF sensor. Idling at 500rpms with random low spikes. Shuttering when accelerating, then clears slightly over 2500-3000 rpms. At this point I'm completely...

Apologies if this isn’t the right place but I’m reading my hair out. For some reason I can’t find this info anywhere else. Can one just replace the battery cable in a 2011 Mazda 3 if 2.0 liter engine or does the entire harness have to go?

Hello, I tried to find info doing a search of relevant topics before posting. Awhile ago my water pump went out and I had it replaced. Since then I have been getting intermittent issues with over heating. Another issue that I have had has been difficult start after the car is warmed up. It will...

Changing the oil in a 2017 Mazda 3, 2l Skyactiv, took the plastic cover off to get access to the filter and plug, and these fell out. Any idea what they are?