Hi guys, recently bought an 2004 1.4 petrol polo for my mrs. 

 

Everything was running great when bought it, had a quick scan of codes and seen it had an error P0402, only an EGR fault.

 

Yesterday I took the throttle body off and gave it a good clean and reattached it, now I am having some major issues with the car. 

 

1. Fault P0170

2. Fault P0106

 

The EPC light and engine management light is lit.

 

I have orded a new throttle body just incase I kill it when cleaning, any other suggestions I can try.

Just an update,

 

I retook of the throttle body and give it another good clean that night, car was still idling like crap and giving the error codes.

 

Came home from work yesterday and gave the MAP sensor a clean and turn it over, car is car idling much better, still dropping a few revs but nothing like it was before and no error codes.