Re: metering pins in carb not working
Mine were frozen in the body of the carb. I replaced the stepper motor and the PCM before I figured out what was going on. If I remember correctly, I think they are supposed to move back and forth once when you first start up the engine. After that they are supposed to move in relation to what the O2 sensor tells the PCM. I could be wrong... I can't remember how you test the stepper motor. I think that is where you need to start. Make sure the motor is OK... If so, maybe your pins are stuck like mine were. I got a whole new carb complete for pretty cheap at local parts store. I will look... I think I had a good link to a website on how to diag this system.
Honestly, I hate it. Mine still runs like crap. but the pins move like they are supposed to.