HI to all ! This video is a quick tip, we are gonna see how to fix egr system on AUDI Q5 2.0 Tdi with a specific dtc error, p0405 Sensor 1/circuit A signal too low. This error will put the car in limp mode and check engine light will be on. This is one of the faults related to this specific error, other things can occur with the same error p0405..wiring, ECU.. etc. So if you having trouble with this error try to check thigs like i did and tell me in the comments how did you solved.
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