Problems with my 2007 Honda CR-V?
My 2007 Honda CR-V is having problems with the engine light and VSA coming on. Once I accelerate the car will start to buck. The first time it happened I was on a highway and let go of the gas and it stopped. I took it for an oil change at the dealership because i thought thats what was caused the engine light to come on. When they returned my car the light was off. A week later it did it again. First the Check engine light came on with the VSA light and another all at the same time. Once I got on the highway and started to accelerate it started to buck again. This time i tried the same as before to let go of the gas give a couple of sec. And accelerate again. It just kept bucking. Does anyone know what it might be? I would really appreciate it. Thank you. 
Both of these lights come on because of the rough running or misfiring condition. Your car is 11 years old and needs to have the spark plugs and plug wires replaced. You also need to have the valves adjusted if you have never had this service done.
Turning the light off does NOT fix the car, and it seems that's all they did. Pull the trouble codes and they will point out the system or parts that malfunctioned. Changing the oil is just maintenance, not repair.
P2647- HONDA - Rocker Arm Oil Pressure Switch Circuit High Voltage
There's a Honda service bulletin for your CRV. The factory bulletin suggests that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) takes care of the problem. Make sure and check first if the engine oil has the correct viscosity when the dealership did the oil change.
When the switch is replaced, clear the codes and the 83-1 code should not come back if the car is fixed.
https://www.engine-codes.com/p2647_honda.html
P2647- HONDA - Rocker Arm Oil Pressure Switch Circuit High Voltage
There's a Honda service bulletin for your CRV. The factory bulletin suggests that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) takes care of the problem. Make sure and check first if the engine oil has the correct viscosity when the dealership did the oil change.
When the switch is replaced, clear the codes and the 83-1 code should not come back if the car is fixed.
https://www.engine-codes.com/p2647_honda.html
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