so occasionally once every couple days, usually when its a little warmer outside, the safc will start reading 100% airflow even at idle, and the car does not want to boost, and it bogs when i give it gas. the first time it happened i assumed it was the premix, i read up the cars run like uber crap if it doesnt have enough oil. which it ran like crap when i put 1/2 per gallon the recomended amount. i have put 1 oz per gallon and it runs excellent. the car will run rough though for about 30 minutes, and both times its after i put gas in it. any ideas?

 

Bad connection to the ECU from the White and the Yellow wires of the SAFC.

When the afm's vane is all the way aft the voltage output is low. In the range of a half volt.. Full closed and its 4 plus volts close to five vdc.

So when it's reading 100 percent, go to the ETC screen and look at the voltage values for the AF1