idk wtf.. i think my ECU is dying. 96 420a boosted, run portfueler, and a active FCD. so i drive it, it drives fine, park it, and as im driving, it shutters frequently, and cel 14 is present, so i unplug the PF and jump the FCd (The dam fcd was just tuned @ 4.57v) and reset ecu. i still get the buck, and if i rev in neutral, my rpm goes up fine and smooth, but when it falls, it like freaks out and the needle bounces sharply and crap, and wide band goes wild for the split second when the rpm bounced, wtf!? bad ECU?
could the actual map sensor be going? fpr @ 48 psi. it dosent seem to want to run normally (ie taking the PF and fcd ou of the equation) so wtf else could it be? tia.
happy thanx giving