hi i have a 94 gsr b18c1 in a 96 civic ex i am running a obd 2 harness with a obd2 P72 it was idling at 2200 rpms now so i figured the fitv was bad so i went ahead and put a LS throttle body on it the throttle cable isnt sticking ive checked and sprayed for vacuum leaks and have changed the IACV still idling way too high i tried manually adjusting it nothing happens i unplug iacv still idles at like 2200 ive even bled the damn cooling system i have no clue hoping someone knows thanks

 

did this happen ever since the swap? sure all vacuum lines are in the correct locations?
could be the temp sensor or even iat sensor among other things

 

did u use the same tps..?

 

throttle cable to tight? is it a stready idol or does it fluxuate? try taping or covering the fit valve shut to test that. does this happen all the time or just when warm? does motor stall when hand is placed over TB? report back and we will go from there

 

Are you running the ECU for the civic or the GSR? I thought '94 was OBD1. Are you using OBD1 injectors/distributor?

You said you tried manually adjusting the idle. Did you try adjusting the idle screw or just the cable?

 

yes it kills motor wen i put hand over tb i used the sane tps yea the vaccums are all right and its a constant 3 grand no fluctuating an an there is no fit i using a ls throttle body an y would the coolant sensor cause tht it readin on my cluster fine

 

ya i running a obd 2 dizzy and injectors and no im using a 96 gsr obd 2 P72

 

Well I have absolutely no experience with Civics, but maybe that's your problem? The ECU isn't designed for that engine. Is it? I thought it was all D-Series in a Civic.

Someone with a bit more knowledge of Civics chime in please.. just a guess here.

 

sounds like the throttle cable is to tight. coolent sensor controls open and closed loop system. does it happen all the time or just when warm?

 

sensor. not sending unit. it relays info of the temp to the ecu. it is imperative for many functions that the ecu receive accurate signal from it.
however, i have a feeling you've got a vac line incorrectly routed.
did this just start happening after the swap? or was this a problem before?

 

ok checked cable it fine i completely undid it to see if it went down it didnt an it has done this since ive got the car i unplug the iac an the idle stays down at 800 but if i plug it in it goes back up so confused lol

 

an it does it as soon as i start the car

 

We need more info on the swap. like did it do this when you did the swap? how many miles on engine? What year the engine is? And mods? All these play a big factor in how we answer this question. From what i understand it may be your iac. try cleaning it out or replacing it.

 

ok it a 94 gsr with cai an tht it it ive changed iac and cleaned both i got it to idle at 800 buit if i plug iac in it goes rite back up 2 2800 with b16 injectors but dnt thnk tht has anyrhging to do with it

 

adjust the idle. my teg used to idle at 1500. now its back to 1k

 

first of all, if your car is idling so high, i would think you have a vaccum leak, and you can also test your ect sensor as well with a dmm, when the engine is cold, your reading should be around 3v, and as it gets warmer, it should drop to around .5-.8v. check that as well, plus how come you don't have a check engine light on? there should be a check engine light on for ckf since your are using an obd1 gsr engine which doesn't come equipped with the ckf and your obd2 gsr ecu should be looking for that sensor, unless you did the ckf bypass trick.

 

try switching the tps and iacv connectors. from what you've described, it sounds like they may be crossed. give that a shot

 

The TPS and IACV connections can not be swapped. (Not on my car anyways..)

You say with the IACV unplugged it idles down to 800? And that you have replaced it and cleaned it? It does sound like a vacuum leak to me. Either that or the IACV is bad.. did you replace it with a brand new one?

 

sorry. it was TPS and MAP that were identical.
try swapping the IACV connector with the IAT connector. they should interchange as well. try that

 

I just swapped 98+ JDM GSR into 90 Teg with P28 ECU and Type R program
I kinda wish I had waited for Ryan @ Rywire as the redline is 6500 and it wants to make more power, however, I am having some of same issues as DNX.
When I started I had Weapon catch can wout PCV in circuit, it sucked about Qt. oil into intake and my rigged throttel had it at 4K. Can caught most but motor ate some, no odd noise or smoke but I am wondering if any damage could have been done as I am having some wierd issues. Idle won't drop belwo 1200 unless loaded with A/C or something, I have switch to pull code whcih TPS is being thrwon. .5 at close 3.5 Ohm WOT. Won't rev past 6500 where it seems to have more power to go, catch has milky cloudy stuff in oil, running Acura Blue, but looks like coolant and there is carbon looking contaminant in cooling system. I Just tried to adjust TPS and the 10 foot drive to garage pressuruised coolant to where removing cap spit some out, maybe coincidence, holds pressure but Peosport, cheap gauge,m reads 210-220 and I have Mishi radiator.
I also sprayed into the TB port slots when cleaning.
Don't want to take over post just thoguht since issues were sorda same my situation could raise some thoughts and help me sort out a bunch of other issues.
Don't let me crowd out thread as I am posting another. Any guidance is very needed and welcme.
I still love my Teg and plan to see it through.
Could the oil sucked in motor casue damage? What could I have done to TPS that made it go frm 1200 to 4000? I may have ovetightened it, disconnecting no help.

 

^^your post is pretty tough to comprehend. but from what i gather you sucked in a qt of oil and now you have a tps code accompanied by high idle.
give your throttlebody a good servicing. use a bottle brush and a can of intake cleaner.