98 ka24de motor into a 92

[ka24det559]

Is it a direct swap, or do i have to do some mods?

Will 92 ecu and harness work with the 98 motor?

[TheOne]

you need to swap intake/exhaust manifolds from your 92 into 98 engine, use 92 wiring harness and everything else.

[caspers_240]

i'm in the process of the same swap (mine's a 97 into a 91). i'm still greasy as i type this. we just sat the engine and transmission into the car and had to call it a day. you will have to make some changes;

1. use your old Exhaust manifold (different flanges from s13 to s14)2. we swaped the intake manifold3. use the vac lines off of your s13 KA4. you have to use the distributer from your s13 ka as well

i'm pretty sure that's it. all the different sensors from OBD1 and 2 will be swaped when you exchange these parts. i hope... let u know in a couple of days

[InsanityInc]

On the intake manifold, I don't think you actually have to use the OBD1 manifold.

I know the upper part of the OBD2 manifold is a direct bolt up to the lower part of the OBD1 manifold, as it's on my car right now. Also, my car is using all the idle valves from the OBD2 lower manifold and they work fine. I wouldn't be at all surprised if the entire lower manifold worked completely fine with an OBD1 car, considering the only other thing on there is the EGR temp. sensor.

[caspers_240]

i wasn't completly sure, and finding info on the net for this particullar swap is a little difficult, so we decided to just play it safe. i was worried b/c the controller was different for the betterfly valves. i wish i would've known eairler, i would've gone with the newer manifold. does your car still go into "warm-up" mode on cold mornings? what about the different sensors on the throttle body?

On the intake manifold, I don't think you actually have to use the OBD1 manifold.

I know the upper part of the OBD2 manifold is a direct bolt up to the lower part of the OBD1 manifold, as it's on my car right now. Also, my car is using all the idle valves from the OBD2 lower manifold and they work fine. I wouldn't be at all surprised if the entire lower manifold worked completely fine with an OBD1 car, considering the only other thing on there is the EGR temp. sensor.

[Amaya]

I have a similar situation. I have a 1993 nissan 240sx se (ka24de) that the cylinder head is warped and decided to get a complete engine instead. I found an engine for $400 dollars, but it from a 1995 240sx it is dual cam too. If I used my old intake manifold and exhaust will it work. Will transmission fit I have a 5 speed. Thanks, I would appreicate any feed back. [email protected]

Robert-

[Amaya]

I have a similar situation. I have a 1993 nissan 240sx se (ka24de) that the cylinder head is warped and decided to get a complete engine instead. I found an engine for $400 dollars, but it from a 1995 240sx it is dual cam too. If I used my old intake manifold and exhaust will it work. Will transmission fit I have a 5 speed. Thanks, I would appreicate any feed back. [email protected]

[caspers_240]

sure will. i think (from my online research) that some 95 model KA's are OBD1 so if you get an earlier 95 KA then you don't have to make any changes (I'm pretty sure). i haven't done a swap with a 95 so i really can't tell you for sure. just look at the differences of each engine once you have them both out of the car, and download a Factory service manual for good measure. either way its a direct bolt up to your transmission, and not a difficult swap at all. just use common sense, and you'll be ok. good luck. maybe you'll have more time to work on it than we have (just had a baby last week)and be back on the road soon. if you have anymore ?'s you can hit me at [email protected]

[InsanityInc]

You'll want to save your TPS (the sensor on the TB). I think that's different in the OBDII cars, and it's VERY important to the proper operation of your car.

My car still idles correctly on warm up, and bumps the idle appropiately (electrical load/AC on). But like I said you have to change the sub harness, because the connections on the backside of the IACV-AAC valve are different for OBDII. Also, the upper manifold on the OBDII KAs has no secondary butterfly valves (which is a good thing, really), so you'll need to cap off the vacuum line going to them.

[ca18datsun510]

You'll want to save your TPS (the sensor on the TB). I think that's different in the OBDII cars, and it's VERY important to the proper operation of your car.

My car still idles correctly on warm up, and bumps the idle appropiately (electrical load/AC on). But like I said you have to change the sub harness, because the connections on the backside of the IACV-AAC valve are different for OBDII. Also, the upper manifold on the OBDII KAs has no secondary butterfly valves (which is a good thing, really), so you'll need to cap off the vacuum line going to them.

did you try changing the sensors themselves so you can use the 96-98 manifold with the 91-94 harness? im pulling my 93 motor out tommorow to swap in a 97 ka, so ill see whats up with that.

[tonynalli]

ohh lord... the manifolds wont ahve to be changed just the temp sensor and the exaust manifold...i did a write up on swapping an s14 motor into a s13...search for it...if you have questions just ask

zerothread?id=149063

helped you in the search..

[ca18datsun510]

i take that back, no thanks for you tonynalli. you swapped in a obd1 early 95 motor. that doesnt count. 95.5-98 have obd2 and have much more vacuum lines and crap to deal with.
Modified by ca18datsun510 at 1:05 AM 2/20/2006

[tonynalli]

right but the basic principles are the same...

[ca18datsun510]

right but the basic principles are the same...

no, they arent. you may as well have put a s13 motor in.

the 95.5 and up have a different computer and emission system since they are obd2, where the s13's and early 95's are obd1. more sensors, more open vacuum areas, more mess.

and i noticed you removed you fan, but only the blades. why did you leave the clutch on? no need to have that there as extra rotating weight if it has no blades on it.

[DjPantsSpecR]

no tonynalli is right

if you already have the s13 DE dont mess with anything other than this:

1st no one mentioned yet that there is a collar that needs to be cut of of the s14 5speed before the driveshaft will go all the way in

just use the lower half of the s13 intake manifold and use the upper half of the s14 manifold. just cap off the line to the swirl control valve. this way you only have to swap the two s13 temp sensors into the s14 manifold. other wise you will have to mess with adjusting your TPS and alot of unecessary stuff that wont help you out power wise anyway.

the 95 OBDi motors were ready for the OBDii change. even some late model 94s were ready despite the fact they are all OBDi. i have a 95 KA a 96 KA a 92 KA and a 93 KA, so dont make life harder for yourself

[loyal240]

I'm also do a similar swap i am putting a 98 into my 95.

[ca18datsun510]

first he says you dont have to do anything to except change the exhaust manifold.

then you say he is right.

then you continue to say that you have to change the lower half of the intake manifold.

which is it?

[DjPantsSpecR]

oh sorry man, you definately have to use the s13 exhaust manifold, thats not right....

i would use the lower s13 intake manifold, with either the s13 upper or s14 upper, but just remember to adress all vacuum lines and coolant sensors.

plus if you want to retain AC you need to put the S13 compressor and the S13 mounting bracket, or vice versa. that wasnt said yet, other than the driveshaft issue

[ca18datsun510]

just dropped the motor in my car today.

left on the s14 intake manifold. swapped the s13 throttle body onto it.used the full length s14 header that came with my motor. s13 o2 swapped right in, plugged the secondary o2 hole.my s14 trans had no cup on the rear? perhaps cause the car it came out of had a driveshaft shop aluminum one piece already installed?

will be hooking up the wiring and vacum tommorow.

i let you guys know what happens. hopefully with some pictures too.

[DjPantsSpecR]

s13 throttle body? you want the entire lower s13 manifold.

i couldn't tell you about the driveshaft. the s14 transmission has a rubber-looking "cup" at the end of the transmission where the driveshaft enters. it looks rubber but is secretly metal. if you can get everything to work you know you have no problem. however you know you have aproblem when you keep trying to muscle back the transmission and cant figure out why it wont go back any more. so in other words, if you cant bolt the transmission to the car you know where you problem is if you have an s13 driveshaft and an s14 transmission. i cant say this "cup" appears on all s14 trannys though, i dont know.

didnt know you had the full exhaust manifold, then i dont see why that wouldnt work on the s13, infact i think s14 2510s is using an s14 header, but with a custom exhaust from there back.

let us know how things are goin

[ca18datsun510]

ok, heres a quick over view.

93 s13 convertible97 ka-de and 5 spd trans.

swapped the throttle body from the s13 motor, distributor, and the temp sensor.

put the motor in as is.

plugged in the harness. there are 2 plugs at the back of the motor on the harness side, that now go nowhere. there is one plug on the engine, towards the throttle body that goes nowhere. everything else plugged right in.

i used the s14 header, bolted right up to my s13 exhaust. used the s14 alternater, had to open up the hole on the positive side to fit over the terminal post. used the s13 p/s pump, but they seem to be exactly the same. used the s14 injen intake. a little bit short. filter adapter from s14 is not the same i have to get one.

hooked up the jump pack, turned the key, let the fuel pump prime for a sec, turned the key the rest of the way, car fired right up, idled fine for 2 minutes, then i shut it off, no cel. perfect idle, reved up smootly.

i still have to do a few more things to make it driveable, but hopefully by tommorow night, ill have it on the road, if it doesnt snow.

[DjPantsSpecR]

assuming youre using the s13 harness. i can only assume you either missed a ground on the back, like the one that plugs onto the firewall.

if you didnt swap the s13 vacuum gallery onto the s14 head, those two plugs go to the PAIR and SCV solenoids.

You removed the SCV with the S14 upper manifold, and if you removed the large black box assembly from right next to the exhaust manifold, then you dont have a PAIR valve anymore either, so you dont need either of those two plugs, if they are black and brown.

the two power steering pumps are the same, and now its not possible to use and s13 alternator anymore, if you try you'll blow the fuse and possible the engine control fuse. but you can upgrade to a 90 amp from a foglighted s14 se for no additional cost from nissan (for the higher amp models).

sounds like good stuff. i hooked back up that vacuum gallery and hooked up the two sensors but plugged all the associated lines. so the motor would not throw a code. but if it doesnt throw one, you should be all good.

have fun

[ca18datsun510]

assuming youre using the s13 harness. i can only assume you either missed a ground on the back, like the one that plugs onto the firewall.

why do you say that? kind of a random statement....

if you didnt swap the s13 vacuum gallery onto the s14 head, those two plugs go to the PAIR and SCV solenoids.

You removed the SCV with the S14 upper manifold, and if you removed the large black box assembly from right next to the exhaust manifold, then you dont have a PAIR valve anymore either, so you dont need either of those two plugs, if they are black and brown.

that is correct sir.

the two power steering pumps are the same, and now its not possible to use and s13 alternator anymore, if you try you'll blow the fuse and possible the engine control fuse. but you can upgrade to a 90 amp from a foglighted s14 se for no additional cost from nissan (for the higher amp models).

why cant i use the s13 alternater? im still using the same electrical system...

[DjPantsSpecR]

1) i was saying if it wasn't either of the two plugs (the black adn brown solenoid plugs) it could be even two of the grounds on the rear of the motor, but i was pretty sure i knew what you meant.

2) i'm talking from experience on this one, if you now try and hook up an s13 starter it will not charge the system. you can hook it up, and unless you can come up with some sort of shim for the ground, it wont do anything. i cant even tell you if the shim would work, but im guessing it would.

my alternator died. it was an s14 unit in an s13 car. i put in an s13 alternator, and it would not work. it kept blowing the alternator fuse and the engine control fuse. i bought a new 96 se from nissan and used that. very nice, and the 90 amp costs the same as a new 75 amp.

[bps71]

Doin same type swap but 96 to 90 ... do all these rules apply or does going that far back require additional work... info appreciated

[DjPantsSpecR]

no, since you're going from sohc to dohc, you are going to need to put a lot more work in it. i've never done the swap, so i dont know if you can do it by splicing wires into the stock harness, but i assume you would need the 96 harness, as well as the 96 transmission, because it has the crank angle sensor in there. you really should search for yourself

[bps71]

thanks ... will look around