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few little wiring issues i suppose any help would be appreciated.

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Old 06-16-10, 12:41 PM
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few little wiring issues i suppose any help would be appreciated.

ok so i have a 90 rx7 gxl. turbo ii swaped (by someone else DOH!)

but oh well.

basically its running a s5 turbo ii ecu ( i believe it has to be )

and it usually starts up and runs fine, the warmup doesnt work at all and i have to manually idle it high for it to warm up.

sometime the start up isnt right at all, i usually have to find a mid point of throttle for it to start (which in my experience of owning rx7's isnt right)

never bogs never dies or anything runs perfectly fine when its warmed up its just those areas.

so i figured i would pull the error codes and this is what i got


________________________

9- water thermostat (just replaced, might have put in up side down)

25-solenoid valve pressure regulator

30-solenoid valve split air bypass

31-solenoid valve relief

32-solenoid valve switching

33-solenoid valve port air bypass

34-solenoid valve idle speed controll

38 solenoid valve accelerated warm up

42-solenoid valve turbo boost pressure


ok heres what im working with and know,

i have a fat rat nest of plugs that arent plugged in, i have no idea where any of them go, there all similar in shape (solenoid plugs) just dont know where any of them go.

there all on the right side of the block and all together, i think that these will hopefully solve a couple of the engine codes

also there another plug over by the fuel pressure regulator that isnt plugged in, where might this go. it doesnt appear that i have any male connectors for any of these to go on.

i also have a random what looks like a o2 sensor hanging out right under neath my intercooler that kinda just hangs down.



these are the mods done to the car, (because someone told me i dont need any of those plugs because the mods done)

full 3" exhaust and downpipe,
aem intake
stage 2 clutch
i was told 750cc injectors
koyo rad
calsonic oil cooler
racing beat oil cooler lines


any and all information would be greatly helpfull. im gonna go on the hunt to find out where all these plugs go today.
Old 06-16-10, 02:44 PM
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The one that matters most is the water thermo sensor and it's located on the backside of the water pump HOUSING. A two wire plug colored usually green. One wire is green/white the other is.....brown/black or maybe just pure black. Depends. You NEED this item to be funtional.

This is the one that is code 09.

I've done my part and answered one question. Now someone else can answer another of the questions and then another etc
Old 06-16-10, 03:50 PM
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haha thanks, i fired it up today, didnt have a single issue, ive ran it for awhile and i think the water thermo is tripping because the accelerated warmup isnt hooked up, i really want to know where that one is, because thats the one thats messing with my startup. if anyone can point me in that direction let me know.
Old 06-16-10, 04:08 PM
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http://www.teamfc3s.org/main/factory...ual/1989_1991/
Old 06-17-10, 11:52 AM
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weird. ok so after me looking at a couple of these diagrams and all, i found out my warmup cycle has a delete plate over where it would be setup. but its definatly a stock plate... so idk wth is up with that. ive never heard of that. all rotaries should have warmups
Old 06-17-10, 12:39 PM
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You might have a JDM engine.
Old 06-18-10, 11:06 AM
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ok yea so thats the other thing... its a jdm motor lol.

its the "rotary turbo with intercooler" and theres a few plugs that have adapters i believe.

if that is the case then how the hell do i get around all those issues? just buy a jdm s5 ecu and wiring harness? cause that doesnt sound fun at all. or really possible to find...
Old 06-18-10, 05:35 PM
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sounds like you have the throttle body mod (which makes your aws go bye bye) im not sure any of the solenoids need to be plugged in except for the prcv.

also o2 sensors measure the heat of exhaust in order to state fuel ratios , this is on your exhaust. (what you see is prol the intake air temp sensor)

all that you needon that engine is the bac and prcv so all the other codes ie everyone of your codes except 9 and 42 are prolly irrelevant.
Old 06-19-10, 12:22 PM
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yea thats what ive heard to and im about ready to cute that harness off and make a adapter plug cause it just it just gets in the way and its an eye sore.

honestly the car runs and stars and is all good MINUS the warmup. which really bugs me..
cause i really have to sit in the car for almost 3-5 minutes manually holding my idle at 3k rpm. or my car will die. which really really sucks.

and yea the o2 sensor is for the air temp sensor.

im wondering because the warmup cycle (which is normally on the left side on the outside edge of the intake plenum (mani) ) has a block off plate, if i can just unbolt that, and bolt the a warmup cycle solenoid on and plug it in... and thatll fix my problem. yay or nay?
Old 06-19-10, 01:02 PM
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On an S4, the warmup cycle lasts for 17 seconds. If the same holds for an S5 then 17 seconds isn't really going to help your problem. Is it?
Old 06-19-10, 03:38 PM
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you need to look at a modded throttle body and compare aws has nothing to do with plenum its a fast idle cam , by the way s5 temp gage is extremely unreliable. all the plates beyond the bac are block off plates . the aws is controled by the heat of the coolant (my s4 idle up for ten secs then down to850 900) if you hold in the clutch and idle up for 3 minutes with no load , well its not healthy.
Old 06-19-10, 10:58 PM
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well yea thats what im saying but where theres normally a solenoid for there to even be a warmup cycle there is none. its just a block off plate which is what makes me wonder if thats the reason theres no warmup cycle at all. because yea idleing it for 3 minutes a day is really unhealthy for the car.

whats the aws? i havent read anything about it, where would this bad boy be located? ill probably look it up but if you know off hand where that works too. because im definatly running usdm wiring harness/ecu with a jdm motor and the warm up is just killing me...
Old 06-20-10, 09:29 AM
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Something isn't right that's for sure. From what I understand it's never good to rev your car during warm up.

Does your car still have the BAC? (if not get one, if so test it to see if it's working)

My Jspec TII does not have the AWS (accelerated warmup system). Don't worry about it, that's not the reason for your problem.

I would personally check the compression, also figure out which ecu you're running. The jdm ecu n374 is sometimes problematic, I had to get a usdm n370 in order to get my car running correct.
Old 06-20-10, 10:41 PM
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its not running bad at all, its got good compression, the warmups arent bad, i burn just a smallllll amount of coolant but its nothing bad by any means, and its not necessarily "revving" it its manual doing the warmup cycle, cause its 17seconds at 3k rpm, another 9 at 2.5k then idle at 1.5k until its all the warm. takes about 5 minutes total.

and alright ill check the bac. where exactly is that located? its on the right side of the block right?


(ps sorry didnt realize aws was accelerated warmup cycle.) ive always read it in the books as sv accelerated warmup.) and yea its not there at all. ill check the ecu tonight and post it here in about 35 minutes.

the usdm n370 ecu is plug and play with the jdm motor and usdm harness right?


i think my BAC is there, just not plugged in.
Old 06-20-10, 10:46 PM
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turns out no. i dont have a bac. ill get on that and get that fixed.
Old 06-20-10, 10:47 PM
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my s4 na would have warmed up and idle down well before ^that described cycle even with its blown rear rotor it didnt have a prob , my exploder 17secs overall then idle .
my s4 did 3k for 10secs then take roughly 4-6 secs to idle
Old 06-20-10, 11:02 PM
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s5 turbos are a little different, turbo has to warm up and get really lubed up with oil, also with the higher compression on the rotors it has to get warmed up a little bit more.
also your car (should) idle at 1500 until its warm then it should have a nice idle at 750. i loved my s4 base warmup. it was so clean and perfect.


ok also found out its a usdm n370 ecu. grabbed some pics while i was down there. so its a usdm ecu and wiring harness with a jimmy rigged s5 turbo haha.

but yea bac is definatly my issue, ill have to look into that. and get the part. to jeffs auto for the 4th time this month! after this little issue is solved ill be in the clear though with this car.
Old 06-20-10, 11:05 PM
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Originally Posted by tonyreifel
but yea bac is definatly my issue, ill have to look into that. and get the part. to jeffs auto for the 4th time this month! after this little issue is solved ill be in the clear though with this car.
yea , you , me and every other rx7 owner has said that 1000s of dollars ago
Old 06-20-10, 11:08 PM
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haha no kidding... last time it was the transmission 450$ in rebuild parts.. before then it was oil cooler lines 300$, before then it was the injectors 700$ before then it was the flywheel cover.. the list goes on and on and ive had the car no longer then a month hahahhaah. its ridiculous.

but rotaries are where its at hahah.
Old 06-21-10, 01:29 PM
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ok im buying the bac today, i need to know what vintage number it is???? thats the what the guy told me and i said i dont even have on and he said oh. lol


so what might it be
Old 06-21-10, 11:24 PM
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bumppp need to know this stufff for tomorrow. lol.
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Quick Reply: few little wiring issues i suppose any help would be appreciated.



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