Fuel trim question
#1
Staging Lane
Thread Starter
iTrader: (2)
Join Date: Apr 2012
Location: Missouri
Posts: 72
Likes: 0
Received 0 Likes
on
0 Posts
Fuel trim question
Ok hey guys I got my intake on now fixed the vacuum leak and idle is good. I'm still waiting on my PCM. So anyways I have my original PCM with a jet prograee and I was messing around looking at the logs it does and my stft is around 1.7x to -3. But my long term fuel trims are around 19-25 sometimes at idle then it'll drop to 10-15%? So I'm confused why would it be running lean? I do have every bolt on except under drive. So is it the programmer or the tune? I know I have exhaust leaks, can that throw it off? And does this mean it is really burning lean? Thanks guys