Originally Posted by
max_fear
Hey all,
I am new to the tuning game and have always had my cars dyno tuned by a trusted shop by my house. This summer I had a stage 3 Texas speed cam installed, along long tube headers and a cai. After installing these mods, I had my car tuned by the shop down the road. Everything was great, until winter hit. I started to get a reoccurring LTFT lean code that would come on and off. I had HPtuners and logged to see what was up with the car. At first I believed it to be a vacuum leak because of it being in Bank 1 and 2, however I have found nothing that can lead to that. My fuel pressure is where it should be, and there are no exhaust leaks. Could something have changed with the tune? Does the colder weather have anything the do with the fact that I am seeing +20s LTFT ? I have logs if anyone would like to observe. Sorry if this is a nooby question. I am new to the tuning world.