why polo vw diseal gets misfire after egr valve changing

Question

I have changed egr due to the erroe code p0405 bit after that i had opened the gear box for cheking the timing but it was complete and there after car gets misfiring

Answer 1

HI there

Many times blocked egr passages can cause this code to appear. Here is some info on the code for you.

P0405 - Exhaust Gas Recirculation Sensor 'A' Circuit Low

Read more: https://www.autocodes.com/p0405.html