The meaning of the P26A1 Code is necessary to know before trying to solve the car engine problem. This code has two different meanings from manufacturer and automobile dictionary. The manufacturer of different cars have set different meanings of the code. The automobile engine must need to use the meaning according to your car engine. Now it becomes easier for solving the car engine problem. However, it may necessary to change parts from the car engine and it may not very costly. The code seems a kind of powertrain problem. Now you take the car for test if you want to drive as test.