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Old 10-12-2013, 08:51 PM
spoolint78 spoolint78 is offline
Join Date: Apr 2006
Posts: 9
Default LC1 wideband hookup issue

Hi all,

I'm trying to hook up the 6 wire lc1 wideband to the maft pro and I am hitting a roadblock. The maft pro is showing 0.02-0.05 for the o2 reading and the afr is just showing -- and sometimes 7.0 afr. The o2 voltage isn't changing. I have the orange wire hooked up to the brown wire on the lc1 and the purple wire from the maft pro grounded to the blue and white wire. The maft pro wideband is setup under lc1.

The yellow wire (narrowband) is showing .99 volts, and the black (Calibrate wire) shows roughly 2.5 volts.

Any ideas? I am thinking to swap widebands to see if its actually the lc1.
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Old 10-21-2013, 09:44 AM
Rick87gn's Avatar
Rick87gn Rick87gn is offline
I spend too much time here
Join Date: Nov 2005
Location: Mokena, Il
Posts: 1,216

Sounds like the lc1 controller is acting up. Is that a new unit? Where do you have the controller located?

Have you logged onto the controller with lc1 software and compared readings?

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