A few days ago, I was driving my car on the interstate. All of a sudden my check engine light came on. And it started acting kind of funny. So I drove to my dads house, I was coming to a red light, I try to let someone out in my car killed. Then at every stop sign or red light when I would stop or try to go it would kill. Then we change the TPS sensor. Now it doesn't kill every time, but it still kills when I break or try to go sometimes. Does anyone know why my car would be killing randomly? It's not like it doesn't start back up, I just have to put it in neutral start my engine put it back in drive and hit my gas pretty fast and then my car goes. like I said it doesn't happen every time I stop or try to go, it just does it sometimes.
My car has 75000 miles.
My car has an automatic transmission.
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Common causes of engine stalling and rough idle include a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at cold start only), worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter, injectors), contaminated or old gasoline, defective throttle position sensor, faulty idle air control valve, leaks in the EGR system, intake vacuum leaks, and so forth. If you request an engine stalling/rough idle diagnostic the responding certified mechanic will get this resolved for you promptly. The fact that your check engine light came on during this incident will aid the diagnostic. The mechanic from YourMechanic would retrieve all the diagnostic trouble code(s) from your car’s PCM that have caused the check engine light to illuminate. Using those codes, the appropriate individual vehicle components or sub-systems (often a sensor, circuit, and the like) can be tested to pinpoint the cause of the fault or the reason why the check engine light has illuminated. Once the faulty part or component is identified, it is explained to your satisfaction and the mechanic will let you know of the cost to repair. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
You should have your computer scanned for codes first and then check the engine for any vacuum leaks and repair as needed. If no vacuum leaks then you may need to replace the idle control valve and verify the engine runs better. If still running bad then you may need to replace the MAP sensor and clear codes. If your first test shows that you have codes then follow the pinpoint tests for the codes and replace the bad components as needed after tests.
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