Just picked up a 93 EG Si hatch with a 94 GSR JDM swap (as a project, I knew there were these issues). I get a good fast idle on start up, but after warm up the idle does fluctuate between 900 - 1500 or so (give or take 100).

I've done a search on intake manifolds and FITV and IACV and found a really good thread on an intake manifold install (https://honda-tech.com/zerothread?id=1141806), but since I'm so new to this stuff there is a couple things missing for me. I'm one of those peeps that needs a frame by frame instructional at first. Here are a handful of pics of my setup around the IM and TB and places I think things are missing. Can someone tell me what's missing?

It has a stock P72 ECU (will be getting an Erick's racing ECU from the seller next week) and I have noticed there are no lines connected to the IACV or FITV which can't be good and may be the source of my problem based on what I've read. I have a good diagram telling me basically what I need to do but it would help to have someone experienced tell me as well.

*EDIT* I want to hook up all of these components so I know if something may be bad. The diagram in the post I linked to looks like what I need, should I try that?

*EDIT* So I've figured out that the PCV was not hooked up to the intake, I took care of that. I found an L-shaped outlet off the main from the head to the thermostat but it seems to be welded shut? And there are no other outlets to hook up the two valvesI'll put up a pic in a few minutes.

I will field any and all questions and give the info to the best of my ability.

Thanks, a lot people. Pics below. Sorry for the long noob post.







Modified by jklobo at 1:03 PM 2/18/2006


Modified by jklobo at 2:46 PM 2/19/2006


Modified by jklobo at 4:22 PM 2/19/2006


Modified by jklobo at 4:34 PM 2/19/2006


Modified by jklobo at 6:48 PM 2/19/2006

 

your iacv may be bad

 

Are the pictures good enough, or should I post more?

 

bump it up ... anyone know what I should do here? None of this crap is hooked up, nothing to the IACV, nothing to the FITV. 93 EG Si with JDM GSR swap.

 

So the problem was that the IACV and the FITV were not connected at all. The previous owner had a line bridging the breather hose line to the main coolant pipe. I just patched the two valves in with the system, bled the coolant and good to go. Hope this helps someone.

 

No cel's? try bleeding the coolant system, you never know.

ILBB

 

Nope, no CEL's. Which surprised me. I did bleed the coolant system. Everything is fine now that it's all connected correctly.

 

o ****, sorry didnt read the hole thread, glad you fixed it.

I hate idle probs.

ILBB

 

no prob. It was the most irritating problem, just cleaning the windshield at the gas station ... up down up down ... I could feel people looking at me ... lol

 

http://www.performanceforum.co....html

http://technet.ff-squad.com/how-to/sk2im/

https://honda-tech.com/zerothread?id=682550

Those links should help you if you have any furthur problems.

 

Problem solved, guys. I appreciated all the help. Especially the walkthroughs, it really helps people like me who are just learning in the Honda world.

 

Here's for someone who asked what the coolant/vacuum setup is like now.

Coolant line from head to FITV:


Connections at FITV:


From FITV to IACV:


The IACV then connects to the main water pipe.

Vacuum connection to Fuel Pressure Regulator:


Vacuum connection to Brake Booster and EVAP purge solenoid:


Vacuum connection from EVAP purge solenoid to charcoal canister: