Steve40th

93 LT1 Stroker, DRM long tube headers, Earls Pressure header gaskets, Heated O2's, DELTEQ ignition.
Left side looks like it goes and reads leaner than right.
http://www.mediafire.com/?9wwcxxwmzin

kinglt-1

iTrader: (26)

I thought lt-1 always run leaner on one side by 2-3%. You suppose to tune for the len side.

Steve40th

Didnt know that, lean on one side is normal?
Can O2 sensors cause this? I went from non heated to heated O2's and a DELTEQ igintion system. Didnt run like this before those items, and Wideband shows 14.2-14.5 at cruise and 13.1-12.7 at WOT. Wideband is in right pipe behind header collector.
I just looked at the plugs, all were a very light tan, with no indication of pre ignition, based on many years of looking at plugs and pretty pics on the net to help.
All the header gaskets are clean, as no evidence of exhaust leaks, no burn marks etc and headers are coated and I see no leaks that are evident.
The left O2 sensor, AC Delcos, was a tad, about a mm loose. I dont know if that is enough to cause a leak, but it was there.

kinglt-1

iTrader: (26)

I was informed by a tuner that one bank tends to run a little leaner than the other, not by a huge amount though. Coul be wrong? What is the difference in your fuel trims from bank 1 to bank 2?

Formula350

iTrader: (3)

If thats true, mine runs like that too. I notice it when I have my scanner running live data on my 93, that one bank runs a bit diff from the other.

kinglt-1

iTrader: (26)

Mine does the same thing, I dont know if certain mods makes this show more. The guy that tuned my car said lt-1's always run a little leaner on one bank. Same thing for the
l-67 3800sc motor.

Steve40th

Here are the files available to be viewed in Excel.
http://www.mediafire.com/?35gzczdy222