2001 I 30 P0171 P0174

[rmaytin]

I have a I30 2001, I had a bad coil pack which would cause missing, replaced pack, know I get P0171, 174. When I start the car in cold weather the engine starts OK but when I put the car into gear and start to move there is a engine miss. I just accelerate the miss goes away and the car runs OK. While driving at highway speeds he check engine light goes on. When I check the error it is the P0171,74 error, I have changed the air filter, with no difference. The car seems to run fine with or without the check engine light on or off. The car is never difficult to start. This missing problem only happens on a cold engine.

[esc-VQ30]

surprised not to see any response on this.. you've described the same problem (lean codes) I am currently having with my 01, i30 - Did you find the problem? If so could you please help me out? Thanks!!