What can cause my car to miss
Spark plugs, coils, injectors, leaking valves, low fuel pressure, ignition wires if equipped, ECM. On this model you should get a check engine light during the miss, so it will set a code that can aide you in diagnosis.
Ditto what tennisshoes said plus: spark plug wires and bad gasoline.
I can smell ruea gas
Urea is a new diesel emission fluid, so if you can smell it then look for a leak in the holding tank.
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