engine vibration and misfire worse when cold
My car has a manual transmission.
Check the spark plug, ignition coil, and fuel injector for proper spray pattern. If all are good, then it may be a wiring issue or possibly carbon build-up on the intake valves effecting the fuel mixture. If you’d like some help with getting this fixed, consider YourMechanic, as a certified technician can help you diagnose your misfire and make the necessary repairs to your vehicle to get it running smoothly again.
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