1991 civic hatch
engine mods: jdm d15 about 4500k on the motor [14500 on the body]
chrome headers
ls throotle body
cold air intake
coilovers
front strut bar
10mm spark plug wires
internal crane stage 3 cam
aem adjustable cam gear
full wire tuck
chipped ecu redline 9300 [6000k built in 2step]





1. need help running wires from horn to horn button so it will pass inspection
2. need help on how to clean the iacv (car will idle fine till it gets to operating speeds then start to jump kinda. not sure where the idle control valve is or how to adjust the settings on it)
3. not sure if all the vaccum lines are hooked up so might need to know about those cause the car has a full wire tuck.
4. also will need help on how to finish tuckign the engine fuse box and some other parts. but will ask for help on that later on when he gets me some pics of it

thats all i can think he needs help with at the moment. and any help would be greatly appreciated and if you culd also show pics of how t adjust the iacv or how to take it off and clean it. thanks

 

ok got some pics from him. heres the problems


was told to adjust this gold screw (flat head) to adjust idle but dont know how to adjust it right


heres some pics of a vaccum hose thats not plugged in dont know where it goes. and a pic of a plug where a hose should go and also theres one just like it on the back side
(hose on top of intake)



stuff he needs help to fiish tucking and mounting

(dont know where this hose should go)

need help really bad it has to be my DD so it needs to run correct

 

somebody help me out on this. i really need the help it's gonna be my DD so i need it to run right.

 

first off where is the vacuum container. you know the one thats on the firewall. thats where a few of those vacuum lines go. as far as adjusting the gold screw just turn it till it idles right either way but not to much to the right. the rule applies to this righty tighty lefty loosy.

 

I surely hope you're not running that engine with stock internals to 9300 rpm, the stock redline is there for a reason. That and if you are running a stage 3 crane cam i sure hope you have a decent tune on that thing. an adjustable cam gear is going to cut it.

the iacv is located on the back of the throttle body, held on with 2 12mm bolts. pull it off and clean it out with carb/choke cleaner. let dry before reinstalling. also consider replacing the little figure 8 shaped $4 seal thats in there.

i can see your fast idle thermal valve (fitv) on the bottom of the ls tb isn't hooked up either. it controls idle on cold startup. there would have been two lines that went to a bypass mounted underneath the stock tb, those 2 hoses should now go to your fitv. one comes from the intake manifold at the head, into the fitv, then out the fitv into one side of the iacv, and from the iacv it goes into the coolant pipe on the back of the block.

as the other guy said your missing your evap canister, and thats where some of those hoses would go.

 

yeah the charcoal canister is either tucked somewhere or taken out .. im not sur yet but i'll figure out .. i was told i didnt need it by several people though .. is that true

 

you're supposed to have it for evap emission reasons, but the car will run fine without. just run the vent tube that comes back from the gas tank down to the bottom of the car so the gas fumes from the fuel tank don't just get dumped into the engine bay.

also thats not a jdm d15b btw. those are sohc vtec engines. you may however have a jdm sohc zc though.

 

idk i was told by 2 previous owners it's a JDM D15B and the block even says D15B but its a nonvtec .. so idk whats up with the motor ... this car doesnt need alot of body or interior work .. just a good paint job and it would look nice the rest of the work is just mechanical and fix the ugly exhaust it has .. lol

 

oh and i deff. wouldnt be taking it to 9300 for a redline. most i would recomend on it would be liek 7500 tops ... but i dont drive it liek that so it doesnt matter to me .. and what did you mean about the adjustable cam gear ..

if anyone has any suggestions about something i should do please let me know ... thanks

 

aight i've been told by some other people i dont need to worry about anythign really just plug that one hose i have pictured thats above the intake. and then check anythign else for vaccum and if it has any just plug them or find a hose to run it if i know where they go. but so far they said just plug that one hose and i should be fine if not then try to clean the iacv and if i still have problems check all my vaccum lines for leaks

 

i was making mention that if you have some crazy stage 3 cam in there with way different lift/duration in comparison to the stock cam, then you need it to be tuned if you want it to run well. if an adjustable cam gear is all thats on their to "tune" the cam, that's not going to cut it.

 

here is what the cam actually is .. crane cam 251-0016

 

and here are the specs on them. so tell me what you think if i need to do anythign if there to big or what.. http://www.cranecams.com/?show=brows...16&lvl=2&prt=5

 

You would definitely benefit from a dyno tune with that cam. thats quite a big increase over stock specs. it says stock springs are fine, although it does suggest using new ones... also i see it mentions "Must use higher compression pistons (10.5-11.5:1) and a street/strip cylinder head porting.". Since i'm pretty sure you still have stock pistons with a stock cyl head, i'm guessing you may actually be making less power than stock

 

really the car pulls way harder than alot of stock or mildly modified hatches i have drove. the motor was supp. rebuilt not to long ago. but idk if it really was or not.

 

aight talked to one of the owners that put the chipped ecu cams and cam gears in and he said that its street tuned so nothing really that special

 

street tuning is not tuning. That's ghetto. You need to buy some time of engine management (such as apex afc,chrome) and tune it on a dyno.

 

fast idle thermal valve (fitv) .. where do the hose's from that run to .. if you can provide pics i would grately appreciate it .. i mean it is cold out so that might affect the way it idles cause f that ..

oh and when i take the intake off and look in the throttle body i see two holes ... top is the iacv and bottom is the fitv .. if i cover the top hole with my finger i feel it sucking and it cuts off .. if i cover the bottom hole it isnt suckign and doesnt do anything when covered .. so what should i do

 

aight i drove the car about 3miles and it warmd up maybe halfway and i plugged that one hose on the throttle body i was told to plug. and now the car wants to cut off when parked at idle. so how would i go about checking if its the iacv for sure. or if its the fitv. please let me know i need to fix this problem asap

 

Dont know about your problem, but just to clarify mis-information. There is infact a d15b without vtec.

 

isnt the d15b7 the jdm one?

 

i looked up pics for a d15b fitv .. and noticed i dont think i have one .. so sis that a major problem .. or does it not really matter?

 

DId the previous owner swap out the throttle body or did you do that?

Are you sure you don't have a FITV? Was it bypassed? I swear i see it under the throttle body.

As for that hose going no where on top of the throttle body , it goes to charcoal canister.

Sounds like an iacv problem to me, have you tried unplugging it when running to see if it shuts off/idles lower/ fixes idle?
When you plug the iacv back in, reset Ecu fuse.









D15b7 was the U.S 92-95 civic dx/lx or del slow-s engine.

 

previous owner swapped it out .. idk what to ddo i have that gold screw on the throttle body tightened all the way ... and when i take the intake off i see 2 holes i cover the bottom one (fitv) and nothing happens no sucking or anything .. i cover the top (iacv) i feel alot of sucking and it will cut off ... where is the fitv located i might of seen a pic of the wrong part or something

 

also i forgot to mention this .. the ecu thats in th car is stock .. thats what the guy i got it from said .. so im not sure if its the stock one from the car or the stock one fr that motor .. but its chipped would that ecu maybe be the prob. for the way it idles