Cat Bypass Choke

[vr6gordy]

My engine light keeps coming one on my 1.8t because I fitted a cat bypass pipe to it I have a choke fitted to the second 02 sensor but hasn't helped I read that if you pack the choke with wire wool it stops the engine light from coming on .. I wanna know how much wire wool to put in the choke do I pack it as tight as I can or do you just put a little in ??? Any
One know many thanks

 

[DieselJake]

Probably better mapping it out .

 

[vr6gordy]

Who would map it out ??

 

[deano1978]

A decent mapper will do it,usually free with remap,and can be upto £150 on its own.