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View Full Version : Bad fuel economy on ls3 headed ls2



TrendSetter
August 4th, 2013, 10:38 PM
I have been getting pretty bad fuel economy in my s10 and so i posted my tune on ls1tech and was told my ve table, timing table, and afr target tables are the culprit. Hopefully someone here can give me a little more info on what exactly is wrong and some help on what direction to go.
thanks

heres my current tune.
http://couldbeworse.org/tune/s10cos3olsd_0007.ctz
http://couldbeworse.org/tune/LS1B_0201.efi
http://couldbeworse.org/tune/calc_pids.txt

LS1B pcm, cos3 OLSD, my nbo2 sensors dont work for some reason i think the harness or ecu is messed up since both sensors are new. my wideband works though.
ls9 injectors, ls3 heads, ls3 intake, t56 magnum, 3.73 rear, 180* stat, 219/224 114+4 cam, long tube headers, open 3" exhaust.
i never calculated compression exactly, but the heads are milled 020 and i have a 040 gasket so it should be around 11:1 maybe a little less.