Post by
Q45tech »
https://forums.nicoclub.com/q45tech-u112.html
Fri Dec 24, 2004 11:27 am
Anything that causes the O2/ecu to sense that the adaptive learn is beyond 115% too much fuel which must be backed off to achieve 14.7AF or as they said sluggish O2, MAF voltage error..........coolant temp sensor not warming up enough [thermostat]...........somehow it is too rich compared to built in software program considers [normal conditions].
Bad plugs and a misfire would also do it.