95sscamaro

iTrader: (6)

Mods below, the car will go full lean and surge for a second or two after I shift gears and get back on the gas (this only happens in closed loop). After I got the car tuned the car ran great, then a couple of months after this started to happen but the car has been sitting with very little driving I have been fighting this problem for awhile now and I'm stumped. I have replaced the O2's (driver side fowled out), valve springs ( to fix valve float problem) , fuel pump (had a whole in the feed line), fuel filter. any help would be great!

hrcslam

Could be the tune. DFCO maybe? Do you have a copy of the tune?

95sscamaro

iTrader: (6)

the car was running great after the tune so I don't think its that but as of now idk. I do, I just got tuner cats and the cable but I'm having connection issues when I was data logging it. I just haven't had time to mess with the settings for the cable.

hrcslam

Tunercats doesn't data log. Use TunerCats to read your PCM, then save that file as your tune in two places then don't mess with one of them. Make sure you run Tunercats in Windows XP (SP2) compatibility mode, otherwise it won't save files.

Download Scan9495.exe (google it) and use that for data logging, it's free.