Hello.
I have a Kia Rio 1.3 Manual 5 Speed with 168600 miles.
For the first time a Cylinder misfire(P0301) happened on the engine about two weeks ago.(Engine light on)
I have the changed the sparks plugs, leads, coil pack and it still has not stopped misfiring.
I have changed the PCV valve about 300 miles ago.
Oil and filter is changed every 5000 miles, sparks changed every 15000 miles and air filter changed every 15000 miles.(Oil last changed at 165000 miles)
I change the coolant every 60000 miles and gearbox oil changed every 25000 miles.
It is used as a daily driver and bought the vehicle in 2015 with 55000 miles.
The only thing now I can think of is the crankshaft sensor.
Any help is appreciated.
Thanks.
Watch Scotty’s videos -
Is your coolant colour good? Have you had any overheating problems recently?
The coolant is brand new, changed it about 3 months ago. Never overheated, had to change radiator about 3 months ago cause of a small leak from on top but never overheated.
Report back after following the steps in Scotty’s videos. Could be the CPS too if your compression tests comes back good.