I'm in the middle of removing my emissions from my 91" GXL, and as with any project I ran into a snag. While removing my acv I realized my 6-port actuators were frozen, the connecting arms to the cylinders were locked up inside the exhaust housing. My thoughts on this are, do those cylinders even need to stay or can you open those ports completely and remove the cylinders. Or if that's not an option any ideas about the best method to trigger the 6 ports once the acv is removed. I've run across many options but not sure which one to go with.

 

If you want a good idle or low-end power ( below 4K) make them functional, if you want ultimate power and simplicity you can remove them. I removed them, but I think I should have kept them in for a more solid idle and low-end power for street cruising.

 

how erratic is you idle with out them?

 

My idle is alittle fussy, and Im not sure that not having them is the main reason, but having them in would make for a better idle.

 

probably will end up tearing down my 90' GTU for the parts, and bypassing the acv by running the lines of the cat.'s return line, seems to be the easiest but the the best option

 

did you remove you're bac valve? was having the same issue and that ended up being the cause

 

No I still have my BAC valve, but if I unplug it from the wiring harness, nothing changes. I replaced mine with another one that I cleaned but still no difference. Some stupid wiring problem.

If you want to know what its like, hold the ports open while the car is idling and see if its ok.

 

yeah that would make a lot of sense I guess. may try that once the car's back in one peice. I'll probably end up replacing them with the actuators from my other car at this point, getting to car to run properly once all my emissions are removed is my main concern right now. And of course getting it back together mahahaha

 

still looking for suggestions on the best way to activate the 6-ports if anyone has an suggestions

 

Someone was working on a way to open them electrically a few months back. I never heard what happened with it tho.

 

Mine aren't removed but they are wired open and my car Idles fine.

 

Anyone have an airpump to give me if I pay shipping?

Yeah there is a writeup on electronic 6 ports somewhere.

 

I heard about the electronic open and thinking of it never heard about it again either, there was a thread about it but I can't seem to find it that had about 4 or 5 different options. I'd really like to take them out and see how it does but I'm not sure I wanta go back and do all the work if it ends up being a bad decision lol

 

Heres one of the threads
https://www.rx7club.com/forum/showth...ectronic+ports

 

I have two air pumps now LMAO since I've torn apart my 90' for parts and hopefully won't need them but we'll see tomorrow when I get the engine back together, needless to say it's in lots of peices, remind me to smack my friend who said it would be easy to remove the emissions. but as far as the airpump, nothing's free in life........

 

just something I found as well https://www.rx7club.com/forum/showth...air+compressor

 

I used to use the airpump outlet into a bleed fitting, and depending on when I want to open them I add more bleeding holes to change how early or late it opens. For 84-88 cars I think it opens way too late, but 89-91 cars I think factory is great. Other source of actuation besides the air pump...... Don't know one that work good and easy.

 

When my fragile little air pump bracket broke, I just wired a $25 electric air horn pump to the aux port solinoid signal.