Re: BII with idle issues
I had a 90 bii that did the same thing. The check engine light would turn on/off intermittently and throw a code(can't remember which one) that indicated an ignition problem. Tuned it up, replaced the coil, fuel pressure regulator, ignition module(on distributor), fuel filter, and on and on based on info provided from different forums. Still wouldn't idle right. Finally replaced the 02 sensor and the problem was fixed.
'00 XLT 3.0 Exted cab
Mods: Roush hood & cai, ASP pwr pulley, hot wtr bypass, 180 therm, e-fan, Gibson exh., 4.10 l/s, FabTech lift, kyb's, bii sway bar. 31x10.50 Yokahama ATs, Panther rims, light bar, SS grille, 03 stang buckets, explorer console, hurst shifter