OK, new issue. I've been checking the so-called fast-idle solenoid because of random stalls at idle, well after the engine is up to normal operating temps. While I'm not done testing those solenoid connections, I've run across what might be a contributing issue.
I have a desmogged engine, and when I bought the rig it had a Weber carb on it, as part of that desmogging process. For a variety of reasons I had the shop switch it back to an Aisin. But while I was checking the fast idle solenoid issue, I found two ports that are not connected to anything, and are not capped. I have been pouring over pix for desmogged carbs, and I haven't yet IDed the ports, nor whether they should still be connected. I think the port on the carb body is part of the PCV circuit, while the second port, against the firewall, I haven't IDed at all.
Can someone help me ID these two ports, and let me know whether they should be capped or connected to something else? Heck, given the alignment, I'm wondering if they should be connected to each other. For now, I've got them both capped, and the engine seems to be running a bit more smoothly, but I also haven't really taken it for a serious drive test yet. I've attached a picture with the two ports circled in red. The picture is taken from the driver's side wheel well. Thanks in advance all, for any help on what I should do with these two ports........
I have a desmogged engine, and when I bought the rig it had a Weber carb on it, as part of that desmogging process. For a variety of reasons I had the shop switch it back to an Aisin. But while I was checking the fast idle solenoid issue, I found two ports that are not connected to anything, and are not capped. I have been pouring over pix for desmogged carbs, and I haven't yet IDed the ports, nor whether they should still be connected. I think the port on the carb body is part of the PCV circuit, while the second port, against the firewall, I haven't IDed at all.
Can someone help me ID these two ports, and let me know whether they should be capped or connected to something else? Heck, given the alignment, I'm wondering if they should be connected to each other. For now, I've got them both capped, and the engine seems to be running a bit more smoothly, but I also haven't really taken it for a serious drive test yet. I've attached a picture with the two ports circled in red. The picture is taken from the driver's side wheel well. Thanks in advance all, for any help on what I should do with these two ports........
