Start with new plugs and wires. If they were not firing well, then you could easily get that smoke and gas smell until the car warmed up. After that, if it is still not right, then go for the fuel pressure regulator.
Make absolutely sure that you use the correct, stock, NGK plugs. Anything else will fail miserably in short order.
Friday, November 24th, 2017 AT 3:44 AM