So I'm in the middle of an overhaul, specifically the vacuum hose job, and decided to go simplified sequential to clean things up a bit. I will be deleting AIR pump, ACV, double throttle, disable EGR, remove both cats (with restrictor plate, I got a few questions about that but I'll make another post come time), as well as other unrelated mods being done at this time. Car is completely stock, meaning stock ECU.

I've heard if I do this w/ stock ECU I will need 330 ohm resistors, but can that be avoided by merely leaving the solenoids (without hoses, of course) plugged in? I mean they can't do anything but the ECU thinks they're there, performing the same function as resistors, right?

I've also heard I'll get idle issues also because of stock ecu, and if i raise my idle to ~1k (just using the set screw, right?) it should alleviate that issue. Is there anything terrible about having the idle at this? I run premix if lubrication is the issue, also it doesn't get too cold in FL and I let my car warm up anyways.

Is there anything special as to how the piping that goes through the LIM between the first and second intake hole, or do they just go straight through? cause I'm thinking of using the top one for the hose that plugs into the y-pipe near the rear (secondary, right?) turbo, instead of the second to top one that it is in the diagram (a lot easier to get at).

Is there any issue with removing the metal piping that routes from the air box to the air pump and the acv? would I have to block off that place at the back of the LIM? also the metal air line that goes back to the cat, can that just be removed without issue, or should I just leave it all in (probably cutting the cat air pipe and capping it then replacing) and cap off both ends?

Yes, I did search but only got pieces of answers, thanks in advance for help!

 

I searched also, took 2 seconds

https://www.rx7club.com/showthread.p...ght=simplified

 

I read that post, and it does not answer any of my questions fully, but that point is moot since I have finished my hose job and answered the questions myself, as follows for future info

1. putting the unnecessary solenoids back in with no hoses, as expected, led to no codes and no trouble (atleast no noticable trouble).

2. Idle may or may not have to be raised, I did slightly, it now typically sits around 900-1050rpm, and occasionally will hunt or try to idle lower, but it is not that invasive or erratic (then again I am used to cammed v8s that idle poorly so it may be a matter of opinion). This I'm sure will get fixed with proper tuning when I go to a Power FC in the future.

3. Not special, just straight through as expected.

4. I did as I stated, leaving it in with a rubber stopper capping the large pipe and I fabbed up a stopper for the air pipe that originally went to the cat by sawing off the end and clogging it with a cap and some rtv.

 

do u have a digram for this simple non squ

 

same link as given, just the last two diagrams on the first post. Non-sequential requires more work than just re-routing hoses though, I would research more before attempting.

https://www.rx7club.com/showthread.ph...ght=simplified

 

Nice. I'm going to research this.