WHAT SHOULD YOU DO IF YOUR CAR HAS P0402?


If your car has excessive exhaust gas recirculation flow, that is, P0402 then chances are your car is giving you a lot of trouble. It refers to a condition in which the EGR valve passes excessive recirculated exhaust gases into the intake manifold. 



Such problems arise in several cars, such as in the VW Tiguan and Volvo S70. If there are chances of P0402 in VW Tiguan, it is better to get consultations from trained and experienced mechanics. The causes of P0402 can vary from the EGR getting stuck to the loosening of the EGR valve, while its symptoms can vary from the illumination of the ‘check engine light’ to the rough running of the engine. Here are a few things you can do to cure your car of P0402: 

Replacing EGR valve 

Most of the P0402 cases arise due to the jamming of the EGR valve. Hence, it is better to replace this valve. 

Replacing broken catalyst in the exhaust 

When there is a broken catalyst in the exhaust, chances are it would give rise to P0402. Since the component itself is broken, the best option is to replace it. 


Cleaning the EGR temperature sensor
When the EGR temperature sensor is faulty, the temperature can show a lot of variation. Thus, cleaning the carbon from it or simply replacing it is the most idyllic course of action. 

If left untreated, the P0402 can cause a great deal of trouble to both the owner as well as to the car. Thus, it is advised to get immediate help from seasoned mechanics to efficiently address this problem.

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