not sure if this is the right spot for this topic or not.....i read my codes today and came across this one.....i researched and it seems to have something to do with the secondary o2 alot of times.....well...im not running any o2's so i can tune partial throttle......its raining today and was thinking maybe some water got into the connector and maybe crossed the wires or something....not to sure but was wanting some more input...im also running a blow thru maf setup...not sure if that as anything to do with it but hey every little bit of info helps.

 

I had that code when I used o2 sim on the secondary o2 sensor. Could be map or you o2 sensor plugs grounding out on something or just a bad sensor i.e. maf.