nascarfan

ok i have a jaw and just bought a lc1 because i thought it was not working/ giving accurate values, from both widebands its saying my car is running a little rich at anything above 3k, at 9lbs its around 11:1
but anything below 3k/ when i let off completly goes to 22:1 on any of my crome maps except i messed up on an uberdata map and i got 9:1 and ran like ----

other things car failed emissions for being too rich at idle and 2500rpm tests
also has been wired by a local shop who nig rigged the wideband install before i had the car, followed all possible hints on lc1 install, ground is at a point on chasis and get no led alarms from it

nascarfan

btw the other lc1 post really isnt the same problem....

MAJORAHOLE

did it ever not go totally lean when you let off?

Tom-Guy

Sounds like everything is working correctly.

Make sure you ground the wideband to the thermostat housing, doing that makes a LARGE improvement in signal quality.

MAJORAHOLE

? really? im about to install my lc-1 here soon, never thought that would be a good ground

Tom-Guy

It's the ECU sensor ground, dude. What the ECU compares all it's sensor voltages to.

You know how the stock fuel pump sometimes has as little as 9-10 volts across it? That is the sort of quality a unibody or battery groud gives you. The only ground in the system is the block FTMFW.

WTF

maybe your lc1 is a pile of ---- like mine.

nascarfan

maybe my map just sucks *** at idle....or iacv or other sensor is ------- up the works

Tom-Guy

IACV isn't a sensor.

Your map sucks at idle. Buy Stenciltizm's Batronix burner in the FS section and fix that.

nascarfan

i have a burn 1, but i just cant believe its really at 20:1 and actually idles
but its not just at idle, its when i let off too.. so how do i fix that just richen up low rpm values in vac
if its super lean why would i fail an idle test?