Fueling Problem?
#1
Junior Member
Thread Starter
iTrader: (3)
Join Date: Aug 2006
Location: Oregon
Posts: 241
Total Cats: 0
Fueling Problem?
So I know that narrow band A/F gauges are unreliable but latly my has been saying that I'm running lean in boost sometimes. Most of the time it runs perfect on the gage but other times it runs lean and it also feels like it's lean (less power). No knocking yet but I'm a little concered. Any idea what it could be. Bad fuel pump, FMU, ???????
#2
Supporting Vendor
iTrader: (33)
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
NBs are horrible. You could be running rich, you could be running lean, no way to know.
FMUs can sometimes be a bit "flakey". My vortec seemed pretty reliable, the BEGi would sometimes take a second to catch up.
FMUs can sometimes be a bit "flakey". My vortec seemed pretty reliable, the BEGi would sometimes take a second to catch up.
#3
Junior Member
Thread Starter
iTrader: (3)
Join Date: Aug 2006
Location: Oregon
Posts: 241
Total Cats: 0
Mine is a 1.8 NA. Don't I have your old vortec? I have a 6:1 disk in it right now. Is weird. One time it went in the red then popped back to green. I would just ignore it but like I said I can feel it lack power at times.
Thread
Thread Starter
Forum
Replies
Last Post