![]() ![]() What this mean, on this unit the common DTC’s are: On this engine a P0408 DTC was set, which means on a simple language the EGR valve is too much closed, or in technical meaning the signal to the ECU is very low actually it is out of range. Here is a picture and a *design view of the unit. The EGR system on this type of engine is not as complex as it looks like. I decide to check what is going on and why should somebody turn off a system in a car if some manufacturers are made that for some reason. In my meaning that technicians only part changers and not pros. Then they told does some “hacker” should the EGR system disarmed ( so called EGR OFF method ) from the system so that system would no more be in an active working condition, but the error code would never be logged by the ECU etc. ![]() Mechanics told to the customer the EGR system should be changed, but that is a very expensive story for the customer. I got a Skoda Octavia II 1.6TDI-CR engine code CAYC which was suffering on power leak, service mode or LIMP mod however, “Check engine” was on etc. Today I will discuss about a very common problem on now day’s modern car’s so called Exhaust Gas Recirculation system or in short EGR. ![]()
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