Hi all,
I've been having a minor problem with my jeep since I bought it. It always had a stinky smell to the exhaust like it's running rich. I replaced the O2 sensor but that did not help. Today I looked at the stepper motor on the back of my Carb. The test I did was to choke it out by holding my hand over the carb while running and then view the metering pins when I removed my hand. From what I read they should be moving, adjusting to compensate for the choke. The pins did not move at all. I had cleaned the metering pin's housing eariler in the day with carb cleaner. They were gummy and did not move with ease before I cleaned them. After which, they moved fine manually but did not move when running.
Questions:
How can I diagnosis if the problem is with the stepper motor or another part? If the problem is with the stepper motor can I purchase and replace only that part or do I need to buy a kit? Where can I purchase a stepper motor and is there another name for it (the parts stores I went to didn't know what I was talking about).
Thanks in advance,
Bill