AFRs have gone rich for no reason...

[t-too]

Can anybody spot anything goofy in this log? I was getting really good results tuning my low speed fuel tables with my Innovate MTX-L, and one day it started running super rich when I hadn't changed anything... I can post a slightly outdated log of before if that would help.

Any ideas as to what might cause this sudden change? It runs terribly when driving around, and maintaining speed at low throttle sometimes causes it to lean out up to like 16:1 AFR.

[Spunkster]

http://www.hondata.com/forum/viewtopic.php?f=19&t=3772

[t-too]

89 Civic
S300... serial 20723
LSvtec swap with gsr head, 240cc injectors, stock IM, stock exhaust manifold. IAB is intact, but not hooked up yet; butterflies are always open. All tuning and datalogging is in open loop, including the time it's been acting up.

I forgot to include the calibration, will post later when I'm home.

Any input on what might cause a sudden change like this would be appreciated!

EDIT: I can't seem to get any other files to upload... Will try again later

[t-too]

calibration

[Spunkster]

Do you have a datalog showing it running rich?

[t-too]

The very first log I uploaded is the rich one... It's not much, just sitting in the driveway but somebody might be able to spot anything screwy or give me any suggestions... It's not a tuning problem I don't think, just MAP or fuel pressure or something is acting up. The tuning was shaping up great before it decided to get really rich.

Fuel rail/fpr are stock btw.

[Spunkster]

ITs running rich because it is still cold and not warmed up. Look at the ECT correction.

[t-too]

It stays very rich after it's warmed up too. I'll have to make another log.