Q: P0300

asked by on December 01, 2017

Rough idle when given gas it gose slow then picks up if started for more then 30 min it shakes
I changed all spark plugs and wires and coil packs My car has 180000 miles.
My car has an automatic transmission.

You will need to have the engine fuel pressure and injectors checked to see if the pressure is low and if okay then the fuel injectors may need cleaned. This can cause the problem you are having.

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