Need your opinion

ONLY for ADVANCED technical discussion about the 240sx!
Nvkreationz
Posts: 533
Joined: Mon Sep 29, 2003 4:12 pm
Car: Cars

Post

I have a 95 240sx and i swapped out the motor from a 97 240sx..now heres the problem, the intake manifold harness dont match up..what should i do?

1) Swap the intake manifold (lot of work)2) switch harness and ecu (way easier)

Now if i decide to use the 97 harness and ecu, will everything work fine? and is the 95 240sx OBD II or I? Because i live in NY and they require all OBD II vehicles to be plugged in for inspections..


180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

Post

told you before use your old harness and ecu.

Z U L8R
Posts: 10
Joined: Thu Apr 20, 2006 5:22 am
Car: 78' DATSUN 280Z + RB20DET , 71' DATSUN 240Z + RB25DET
Contact:

Post

95 unless it's a reeeeeeaaaaaalllly late production 95 will be OBD, 96 and up is always OBD 2.

You can do either or.

1) If you use the 97 harness & ecu, just don't tell the emissions place it's obd 2 and let them put your car on the rollers for the 50/50 test. That's where they put the readers in your tail pipe and run the car at specific rpm ranges etc

Cons however, I personally, have never done that specific swap so I don't know if you'll run into any other problems, such as the plug behind the glove box that goes to the dash etc. They may be the same, they may not, if not match the colors. But I don't think that'll be an issue.

2) If you swap the intake manifolds get new intake gaskets regardless of whether or not they appear to be intact upon dissassembly. Save yourself the headache of doing the suck work twice.

Just a quick question, why is this even an issue? Are there extra plugs, are some of the plugs different, is something too short, ??

Another pro to the 97 ecu and harness would be, if you have the rest of the harness, specifically the OBD 2 check connecter, on the bright side if you encounter problems or still fail emissions it'll store in the ecu the trouble codes and help with your diagnosis. My opinion I'd use the 97 electronics with a 97 motor.

Nvkreationz
Posts: 533
Joined: Mon Sep 29, 2003 4:12 pm
Car: Cars

Post

There are extra plugs and some plugs dont match up. Im thinking its for OBD 2 with all the extra plugs for sensor wise.

180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

Post

use the head and block from the 97 but everything else use from the 95.


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