My car misfires whenever it warms up. I get the following fault codes
16685: Cylinder 1 misfire
16688: Cylinder 4 misfire
16684: Random/Multiple misfire
16825: Evaporative Emission System incorrect purge flow.
These vehicles are really prone to coil failures. I would swap the coils to cylinders 2 and 3 and see if the miss follows.
September, 18, 2012 AT 6:56 AM
Thanks. I have renewed all 4 coils and still experience the same problem. When the misfire occurs, I realised that the fuel injectors 1 and 4 do not have electrical pulses. Immediately I clear the fault codes, power on the connectors resumes and thereafter disappears. The engine is also very hot then but have no temperature sensor faults. Could my ECU?