ssei running crazy rich? & chugging

[2KSexsei]

Vehicle is the one in the sig. It started chugging a bit last night on the way home last night. While watching the wide band and the scan gauge I saw that with the slighest application of the throttle (less than ten percent) the timing was being pulled to 9.5 degrees and the afr pegged to the richest the gauge goes (10.0). Stft were at -11.5 and -ltft were at -22. If I am very very careful With the pedal, it runs as it should. I don't know what to think of this. Any ideas or directions where to go would be very appreciated

[myfirstbonnie]

Check for vacuum leaks. The tee under the sc snout and also check for gas in the vacuum line to the FPR.

[2KSexsei]

Checked the vacuum lines with carb cleaner and while it was running pulled the line off the fpr, no gas there. :(

[Archon]

Check the temperature sensors to see if they think that it is really cold outside. Also, disconnect the MAF and see what the readings do.

[silverws6ta]

Check O2 sensor Bank 1 Sensor 1 for slow rich/lean switching.. I had one of the newer AFS109 designs (presumably denso) and it went to the crapper --- I had one of older (rounded tip) AFS109's with with rounded tip and it cleared it right up.. MPG's went back up, and not fumes..