Chevrolet Impala 9 DF309 Engine Trouble Code
When the check engine light comes Chevrolet Impala 9 DF309 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.
Chevrolet Impala 9 DF309 Code Meaning :
For Engine
Engine Oil Temperature Sensor Malfunction
Crankshaft Position Sensor A Circuit Malfunction
Exhaust Gas Recirculation Sensor B Circuit High

When you check Chevrolet Impala 9 car engine light came on code DF309 the reason should be . However manufacturer may have a different definition for the DF309 . So you should chech it on our car models.
DF309 Description
DF309 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For DF309 Code
The reason of DF309 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.DF309 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
DF308 Previous Engine Trouble Code For Chevrolet Impala 9 | Next Engine Trouble Code For Chevrolet Impala 9 DF310 |