so I have a problem with my 305 tbi running rich I have checked the injector pulse with a noid light and seam to have constant power the van runs a little smoky and is running uneven quite fast then dropping down to nearly stall I don't have much experience with tbi set up so need all the help I can get I do have a broken knock sensor but not sure if that would cause this problem
engine is a 90s 305 tbi
thanks for any advice in advance