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I did an oil change and got the synthetic oil for the first time. Car was running great. This morning I started the engine and got the dreaded check engine light. Took it into AutoZone to get a code reading. Technician says there is a code for misfiring on one of the cylinders. Any chance I am getting this code due to using a different kind of oil or the code reader not being entirely reset. I recall all the lights coming on the dashboard until the technicians did a reset after the oil change. Advice please.
I did an oil change and got the synthetic oil for the first time. Car was running great. This morning I started the engine and got the dreaded check engine light. Took it into AutoZone to get a code reading. Technician says there is a code for misfiring on one of the cylinders. Any chance I am getting this code due to using a different kind of oil or the code reader not being entirely reset. I recall all the lights coming on the dashboard until the technicians did a reset after the oil change. Advice please.
Model?
Year?
Engine?
Miles on odometer?
Number of accidents?
1. Needs new spark plugs.
2. Needs new ignition wires.
3. Valves not seating properly.
4. May be an injector problem, if you have injectors.
It has nothing to do with your motor oil. Any decent shop can troubleshoot the ignition system by just reading voltage across the plug and leakage on the wires. Pouring a pint of diesel through the intake while the engine is revving may blow carbon out of the valves. Otherwise, it needs some shop time.
For starters I am not sure if you checked the oil level to make sure it is full. Synthetic oil is not going to trigger a CEL or a misfire. Something done wrong during the oil change could. I would pop the hood and makes sure all wires/hoses/clamps are proper. It could just be a coincidence and as mentioned above the make/model/miles and maintenance record of the car would help us help you better.
Any auto parts store will read the computer codes to give you a place to start. Diagnosing a check engine light is a no-brainer.
Diagnosing it correctly, however, often requires more brains.
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