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240andbeyond

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Discussion starter · #1 ·
:ihit:eek::12dunno:12dunno:12dunnoOk Ive talked to you guys before and you were all really helpful so maybe you can help me out again, lets do this one at a time. Im not looking for the answer to everything just some idea, troubleshooting, etc unless you know what to do. :12dunno

I own a 1993 240sx, EXCEPT it has the 97 motor. I recently did a transmission/clutch/flywheel swap on my car. I asked around and heard that any transmission/clutch/flywheel combo works on any year motor from a 240 I.e, 97 motor 93 transmission clutch and flywheel. ???:12dunno

So anyways I have a 97 motor, 93 transmission/stage 2 clutch not oem/ and lightened flywheel, it drives, but not great. after the swap we bleed the clutch and its still not as snappy as it should be its really but usually if i depress it once or twice it will stop for the time being. Aside from bleeding the clutch ( I am really not familiar with hydraulic clutches) is there any mechanism or linkage that could be causing this? Or could it just possibly be the wrong clutch or just not set up right?

The motor also has an aftermarket dc header, however where the o2 sensor out it came out for whatever reason so they simply welded over it so I have to take it off drill and tap it to put it in, my question, where does the cable from o2 sensor run to from the header? or where can i get a new cable or diagram or schematic my chilton really wasnt helpful... Then theres the o2 sensor after the downpipe, where does that cable run? i think it runs to the speed sensor or whatever on the transmission ( the only cut plug on it after the swap) is this correct? in this case should i buy a new plug for the transmission to connect to the 02 sensor because i heard that its pretty important that the wire and sheathing is in good condition for an o2 sensor to work properly?:tears

ok ya and my cd player i can hook it up right but all the speakers have + and - and a preamp and shit idk or wtf im talking about but anyways i can get it to work but its always running constant how to hook the wires to stop it from running constant if that makes sense? How do i deal with the + and - wires and illumination/power and that stuff because im doing something wrong thats real dumb

I hope this makes sense and you guys can help me out or point me in the right direction:thumbsup:crazyrant
 
ok, well as far as the transmisson/clutch/flywheel yes, anyone will work. as far as the clutch, if you used all the stock lines, including the dampener (the coil lookin thingy) you probly bled it but not quite enough, it took me over an hour to bleed out the one on my maxima. So to fix it you can either bleed it for a long time, or you can just remove the dampener all together, then it will be WAAAAAY easyer to bleed.
 
Front O2 sensor, on the header, you can find where to wire from the FSM. Second sensor, don't waste your time. The only thing you get from not hooking that up is a Primary Cat Malfunction ECU code.
 
Discussion starter · #6 ·
much love.

would not having the primary 02 sensor ( one on the header) cause the car to die at idle? or cause it to bog when first revving up???

The car starts and it idles rough, but ok, but if you let it go long enough it just shuts off. Is this like a airflow sensor thing, fuel, etc? how would i go about diagnosing that?
 
Not having the primary O2 sensor will make the car virtually undriveable, the ECU won't have the neccessary information to maintain the air/fuel ratio in the engine. It drops into "safe" mode, it won't rev past 2500rpm no matter what, probably runs like shit too (never had it happen).
 
Discussion starter · #8 ·
Ummm I dont have a single o2 sensor and after boggin til like 3 grand it can rip like no ones business. I guess I gota replace some sensors and fuck with the clutch.




Is there anyway the ECU could be defaulting in someways since is a weird setup (97 motor 93 car) or are they interchangeable?

Can I still take the dampener off when the trans is on? its on the outside im sure anyways duh. Any body got some sensors for sale??? MAF, IAC, ECT etc. know where i can get a discounted fuel filter or injectors or something? Im not giving up on this car if it takes a year. I just spent a shit load of moolah on it so im guna be broke for a while

I was thinking about replacing and checking most of the things in the bogging thread for s13 and then troubleshooting the clutch and once things are in order, maybe having a tune or should I just check the ECU for blown fuses?
 
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