Re: 2000 Base Firebird 3.8 v6 SES cold p0306 PLEASE Help!!!
Try swapping #6 fuel injector with another cylinder, and see if the code follows the #6 injector. While you have the fuel rail off, pressure the fuel system by turning the key to "run" (not to "start") and see if the injector is dripping.
Do a compression check.
Check the valve adjustment.
Have the ignition control module checked.
94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400+GearVendors OD/4.11's / Strange 12-bolt / 300-shot N2O / Spohn Suspension / 6-pt roll bar with integrated SFC's / full AutoMeter instrumentation / MoTeC M48 Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.