Q: P0300

asked by on

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.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel tank filler neck assembly leaking. Sensor code P0442

I am working on this

Q: Suspension noise

The noise is coming from the struts in the front. The noise comes and goes since the fluid inside the strut is warming up from the highway drive than as it cools the noise subsides. This may be a normal...

Q: my car doesnt recognize that the clutch is being pushed

Hi Matthew. Thanks for contacting us today. Typically when a car with a manual transmission will not start due to this problem, it is due to a failed clutch safety switch. If you'd like to request an estimate to have...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...