Posted by Sean Mc GettiganSean McGettigan
on June 29, 2010, 8:15 am, in reply to "Re: Citroen Saxo 1.1 HFX 2001 - Surging & fuel trim issue, codes P0420, P0172 & P0134 #"
Hi Lee, some systems will reset fuel trims when you clear codes and some won,t (have to reset as a seperate item).
Depends on the system. Thats why its always a good idea to note fuel trims before clearing code etc.
Hth
Sean
