stumped
#1
Staging Lane
Thread Starter
Join Date: Dec 2005
Location: reno
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I have an LS6 that runs lean at WOT. Not sure if it is a sensor or internal. 90% of the time it runs lean at WOT and sometimes it runs fine lots of power seems to run its best on the freeway and like crap on the street from a stop…. Car runs fine up until about 4800 rpm lower RPM seems fine. Has MS3 cam, springs-pushrods, 90/90 42# injectors *new fuel line fuel filter, regulator, IAT sensor,TPS sensor.
It has been tuned as well (SD) but think it needs to go back cause I milled the heads a bit. But am stumped because it does run ok sometimes.. Anyone have any ideas please let me know thanks…
p.s. i dont have a wide band just a crappy narrow band thats how i know its running lean besides the fact that it feals like the anchor is getting thrown out at 4800 RPM![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
It has been tuned as well (SD) but think it needs to go back cause I milled the heads a bit. But am stumped because it does run ok sometimes.. Anyone have any ideas please let me know thanks…
p.s. i dont have a wide band just a crappy narrow band thats how i know its running lean besides the fact that it feals like the anchor is getting thrown out at 4800 RPM
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)