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by German_Hwip_85
Mon Aug 28, 2023 5:42 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Fuel injectors require coding to cylinder?
Replies: 2
Views: 2552

Fuel injectors require coding to cylinder?

Hi All,

I have recently replaced all 4 injectors on my 2003 Polo 9n 1.4 16v 75bhp BBY engine.

Just wondering if they require coding in?
I have heard that this is sometimes required on certain cars when an injector(s) is replaced.

Car is still idling rough but it is better than it was since ...