moates auto prom
90 iroc-z 5.7tpi ecm 1227730
trying to configure digital dash to displaly open/closed loop and o2 status
getting white blank bars no matter what color i specify for the digital type gauge. all other digital and analog gauges display normal.
difficult to diag when loop status and 02 unknown.
test drive sensor data looks normal. eng throttle response and cold starts overall running condition is excellent.
o2 sensor and all connecting wiring have been replaced all the way to the ecm and double crimped soldered and shrinkwrapped. o2 is anti seized with permatex anti seize good for o2 ground conductivity ( i checked on bottle )
o2 response curve during test drive looks normal when op temp is reached. lots of direction changes . rapid response/ fluctuations / spikes between 200-900 millivolts.
anybody have this problem with o2 sensor data display on digital dash ?
