almost finished swap question....

[yourmomsrps13]

has anyone wired their JDM trans sensors to the ka lower harness? if you have what color wires go to the ka colored wires? i dont have a FSM for the ka so im not sure which plug is for which sensor.

also in the CA fsm i cant find vacuum line diagram and im not 100% sure which heater core lines go where. thanks in advance

[lifelicksballs]

actually i need the answers to those quesitons too...anyone?

[NeedCAforS13]

pull the KA sensors and put them in the corresponding spots on the JDM transmission! WOOOOOOOO. fit right in, and no rewire neccesary Look in the lower harness thread. I just answered this.

heater hoses, don't think they matter which goes where, but I have the one that comes from under the manifold going to the top one, and the one out of the block going to the bottom one.

don't worry about the factory vaccum diagram. run this way: If you are running the stock turbo, run the vaccum line from the nipple on the turbo to the wastegate. If you have no nipple on your turbo or hotpipe, just run a T from the line going to your BOV.



Sean

[sdtouge]

heater hoses dont matter how they go, i dont think the hater core cares lol.

vacuum lines are rally easy, and are in the FAQ. you could do a rebuild and swap off the info in the FAQ lol.

just need fpr, waste gate, and brake booster. if your keeping butterflies hook those up, and ifyou ditching the canister just blcokk off the rest of the vacuum lines, there is one behind thhrottle body, 2 under thottle plate tihng, and those 4 under intake mani towards back that are just hard lines connnecting soft vacuum lines.

[lifelicksballs]

noob question what/where are the heater hoses

[yourmomsrps13]

pull the KA sensors and put them in the corresponding spots on the JDM transmission! WOOOOOOOO. fit right in, and no rewire neccesary Look in the lower harness thread. I just answered this.

Sean

um yeahi dont have the usdm transmission just the jdm ca transmission, sooooooo um hhmmmm

anyone wanna sell me the sensors and including speed?

[NeedCAforS13]

you need the speed for sure. if not your gauge cluster will be off slightly. the JDM one is designed to turn the KPH gauge, but its pretty close tot he MPH one. Find a junked car Let me scrounge around the garage a bit, I might have some extras I can send ya.

Sean

[biosehnsucht]

actually the speedo will work fine regardless, but it may be off due to the sensor used in the transmission

the difference between CA and KA speedo sensors is 7% due to them being intended for different final drive gears, 4.363 for the CA and 4.08 for the KA. so for example a CA sensor on a KA diff will read 7% too low; a CA on CA or KA on KA will read correctly. if it was a km/h vs mph difference, it would be much larger.

I have a CA sensor in mine since my KA sensor crapped itself, so my speedo reads 7% too low

the speedometer is only configured for X pulses = Y speed, and thats same regardless of km/h or mph, assuming of course you have the right gear on the speedo sensor for the final drive.. if its wrong, its wrong regardless of which speedo you use..

I've got a German market cluster w/ 240km/h max indicated speed, and no mph indications so I always have to do mental math (being a computer geek its easy to work on multiple of 16 vs 1.6, i.e. 35mph = 3.5*16 = 3*16 + .5*16 = 48+8 = 56km/h .. I can do these maths pretty easy in my head

[NeedCAforS13]

blah. haha, didn't quite get the reason right, but the end result is the same. Use the KA speed sensor for the right speedometer reading

Sean

[biosehnsucht]

SOME DAY I swear I'm going to marry a 4.363 gear and a S15 spec-R helical LSD together.. SOME DAY

if nothing else I need my 4.363, it kills me knowing I'm always 7% slower than I should be.

[yourmomsrps13]

ive been to every junkyard around here and they wont sell me the sensor without the transmission (so if you have one ill buy it), but my question is more for the wiring of the jdm gear sensors, the 2 others that dont have any bolts holding them in. i can get pics and wire color if that helps, because the JDM wire colors and the usdm colors are diferent, also i have a wierd plug on the end of the transmission harness that is square not like the 2 others. or you guys can sell me them sensors too.

thanksall info is important to me regardless if it helps me or not, its knowledge

[biosehnsucht]

the colors of the wires don't matter, just which position they're in, since the switches just connect the wires together, there's no concern for which way the current goes

positions should be roughly the same as your KA one, but the CA doesn't use as many of them, so basically match up whats there.. you can swap the KA sensors and use the KA lower harness bits or wire the CA stuff up ..

[float_6969]

Did anybody notice that Sean pwns MSPaint??? At least you've got SOME sort of life skill Sean!

[yourmomsrps13]

sorry but i have a really bad memory, can someone tell me what the black square shaped plug on the transmission harness is too?, i have 2 plugs that are grey and similar that im almost sure go to the gear sensors but whats the other one?

[yourmomsrps13]

anyone?

[float_6969]

Pics? I would assume it's a gear sensor. I used the CA lower harness, so mine was plug-n-play

[yourmomsrps13]

i dont have pics yet, but there are 3 plugs 2 grey ovals for gears sensors i believe and 1 black square on all on the same harness. i wish my memory was better, i also dont remember where the single black wire on the alt harness goes, or where the 2 ysdm plugs under the Power steering res. go, or where this grey 5 pinned plug on the jdm/usdm harness just slightly longer then the MAF plug.....i cant find where they go.... BLAH ginkobaloba!

[teddy]

I wired up my KA harness to the jdm sensors and everything works fine, granted I have a jdm gauge cluster. There also should only be one black wire that hooks onto the alternator. You have the 2 pin plug that plugs in, one white wire with an eyelet, and a black wire with an eyelet. IIRC, the black wire goes to the terminal thats closest to the block. Someone correct me if thats wrong though. And this is where you can find a ka fsm http://www.zeroyon.com/TheSite/techservice.html

[yourmomsrps13]

doesnt my single black wire with the eyelet just get bolted to the body for a alt. ground?

[lifelicksballs]

hey needcafors13 im not really good with vacuum hoses and everything but what if i dont have a bov where would the hose go im a real noob when it comes to this

[NeedCAforS13]

just block off that hole in the manifold with a cap if you're using the stock turbo. If you're using a different turbo that doesn't have a nipple on the compressor itself (for example: any SR turbo) use that as your wastegate signal.

Sean

[lifelicksballs]

it's already connected though from the compressor to the wastegate but it's connected with a T so i have an open tube.so i should just cap that off too? oh and there's also another vacuum hose i have a question about it one of the three colored hoses under the intake manifold and leads to the hotpipe and is connected with a bracket(not actually connected to the pipe though)

[yourmomsrps13]

i still dont know what these plugs goes to --------------------------------------and this plug -------------------------------------um yeah and this maybe sound stupid but these plugs dont fit together does it go somewhere else?

[biosehnsucht]

i still dont know what these plugs goes to

Pure colors and 5 total wires, I'm betting on fuel injector dropping resistor connector - you NEED that hooked up.Quote »--------------------------------------and this plug -------------------------------------um yeah and this maybe sound stupid but these plugs dont fit together does it go somewhere else?[/quote]that second one might be the one that goes up to the dash harness (not sure, is that white connector hanging down from the dash harness?), you'll have to rewire / swap pins into the existing connector I think ? Not 100% sure on this but I think I hacked off one from a junkyard so I didn't have to break my KA harness when making up the CA harness.. look at the pinouts for that connector on the CA FSM and KA FSM for your car and compare where what needs to go where.

[yourmomsrps13]

no those are the 2 plugs on my engine harness, the brown one does NOT fit in my dash harness(close but no cigar) the other white one is on my harness where does that go and where does that fuctin plug by the MAF go?????

[yourmomsrps13]

no those are the 2 plugs on my engine harness, the brown one does NOT fit in my dash harness(close but no cigar) the other white one is on my harness where does that go and where does that fuctin plug by the MAF go?????

[biosehnsucht]

one by the MAF is for fuel injector dropping resistor probably. the colored wires if you trace them should have continuity to the fuel injector connectors (one wire on each connector should go to one each of those colored connectors)

one of those two connectors will need to be hacked onto a KA connector to match your dash harness, the JDM one doesn't fit. if you have nearby junkyards go steal one from there, so you don't have to pwn your KA harness. otherwise, just hack it off your KA harness.

look at this and this

and then look at your 240SX FSM. You DO have one, riiiiight?

F1 is the connector that goes up to the dash.F3 is for automatic transmission computer.

F1 should be at the very end of the harness where the ECU connector is, and F3 should be a little bit up aways..

[yourmomsrps13]

i have it on CD and its sucks but anyways i already have my dropping resistor hooked up to the the plug that fit and was in the right spot/correct length or wire, if its to my injector dropping resistor why does it come out of my harness all the way over by the maf? and i guess ill be taking a trip to the junkyard

[biosehnsucht]

stock location was on exhaust side engine bay bolted to the strut tower area.

are you sure you hooked it to the right connection?

there's a same type connector elsewhere thats one of the two connectors for the ignitor, wiring is different however. Altho these are both in the same area so I could be wrong but I'm pretty sure thats what that is. Check the wire colors and check the wiring diagrams from the CA FSM etc.

[yourmomsrps13]