Faboy 0 Posted June 6 Hi. I have the Ford Focus MK2 Duratec 2.0. When i installed the K&N cold air intake kits, everything was fine until i was going uphill. I can feel that the car was losing power ( vs the stock intake ). What do i have to do to solve this issue. Thanks guys Quote Share this post Link to post Share on other sites
Guy Heaton 33 Posted June 6 Rip it off, it's pointless, spend the money on changing the OEM paper filter every 10k. 1 1 alexp999 and Faboy reacted to this Quote Share this post Link to post Share on other sites
Faboy 0 Posted June 6 17 minutes ago, Guy Heaton said: Rip it off, it's pointless, spend the money on changing the OEM paper filter every 10k. Yah. I just reinstalled the OEM ones but missing the sound of K&N cold air intake given 😣 Quote Share this post Link to post Share on other sites
F0CUE 227 Posted June 7 Did you reset the ECU after installing it? Quote Share this post Link to post Share on other sites
Faboy 0 Posted June 7 How to reset the ECU btw Quote Share this post Link to post Share on other sites
F0CUE 227 Posted June 7 Remove the negative battery lead for about 30-45 mins then the ECU will relearn and adjust for any changes. Quote Share this post Link to post Share on other sites
Dave sport tdci 42 Posted June 12 On 6/6/2019 at 9:48 PM, Faboy said: Yah. I just reinstalled the OEM ones but missing the sound of K&N cold air intake given 😣 You need a good cold air feed as it will back off the power as it heats up I had a ramair and in the winter it's great in the summer I switched back to the stock air box Quote Share this post Link to post Share on other sites
