MrCornfed85
Probationary Member
- 14
- 11
- Apr 16, 2018
-
Thornton,
Colorado
I’ve done a lot of research but not sure what to dig into first. I’ve done boost leak tests, checked battery/alternator seem to be fine, I have a fairly new fuel filter (stock), fuel pressure seems okay at 43.5 around, I also did check fuel pump and hanger fuel pump is new and spark plugs are fairly new as well 8es.
For some reason I keep leaning out at the top when boost starts to kick in, I’m currently in the process of tuning for flex fuel but no matter how much of fuel we throw at it it doesn’t get richer. I do notice moderate throttle around 3500-4k rpm it has some phantom knock. I’m on speed density and I’m running out of ideas, should I change the filter again or dig else where, I did read TPS or a bad MAP sensor cause issues but I would assume non start issues. My sensors seem to be running fine as well as far as I can see on the logs. I have no cells and the knock sensor is new as well. I even went as far as checking my ECU and no leaking or damage to the ECU. I’m on 2150cc, fuel feed -8an, return -6an on Fuel Lab AFPR.
For some reason I keep leaning out at the top when boost starts to kick in, I’m currently in the process of tuning for flex fuel but no matter how much of fuel we throw at it it doesn’t get richer. I do notice moderate throttle around 3500-4k rpm it has some phantom knock. I’m on speed density and I’m running out of ideas, should I change the filter again or dig else where, I did read TPS or a bad MAP sensor cause issues but I would assume non start issues. My sensors seem to be running fine as well as far as I can see on the logs. I have no cells and the knock sensor is new as well. I even went as far as checking my ECU and no leaking or damage to the ECU. I’m on 2150cc, fuel feed -8an, return -6an on Fuel Lab AFPR.