Hey Scotty, I noticed my 2014 Mazda 3 has been idling low, everything else is fine but I noticed at a stop light or when I'm parked it'll start to shake a little bit and my rpms will be about 600, they're consistent just low, I cleaned the maf sensor, changed the spark plugs, cleaned the throttle body. There's no vaccum leaks, and it's a break by wire so no iac valve, any idea what it could be? It has 190000 kms if that helps.
Well put the car in neutral or park is it idling low stops it means the torque converting your transmission is worn and really you could live with that unless you want to spend a ton pulling the transmission off and fixing it but do try my video how to clean fuel injectors without removal
Thanks Scotty!!! You're the best. I tried it in park/neutral and it's the same, so I think I'll try cleaning the injectors thanks
Also make sure that the MAF sensor is working fine.
Be sure to test the battery and alternator. Autozone and other parts stores will test for free.
Scotty has a video on how to disconnect the battery and reset the computer as well.
