You should not allow any meaning of the P1652 Code. For the wrong meaning, more terrible problems in the car engine may get different problems in the car engine. The car engine should be checked by engine code reader and manually. Manual checking is done by the automobile engineer. Do not keep the engine problem unfixed. Due to this reason, the car engine may get new problems what can create more and more problem. Even the problem can be costly if the problem is fixed later. You should try to solve the car engine in your place if all necessary things are not available.