sohc to dohc swap need help with wirin!!!!
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mistahchan
- Posts: 4
- Joined: Mon Jun 23, 2003 8:32 am
sohc to dohc swap need help with wirin!!!!
everybody i have a 90 240sx and planning on swapping a ka24de motor off of a 98 240sx its an automatic and my car is a manual. the motor and everything is in, but the wiring is very complicated. is it that the wireing is different from one another cuz it do seem like it so then I was planning on taking out the whole wireing from the 98 240 and installing it in my car but to do that i would have to rip my wireing from my 90 240sx. is there any other way i can do it besides my way???????
Ok thisis directly from SRswap.com. Basically at the ECU plug there witll be 13 wires that go to another connector that plugs into the dash harness. Take the connector from the SOHC motor and splice it in right there. All you have to do is color match the wires. You will have a few wires not connected and this is ok. After splicing in the SOHC connecter just plug and play. I have had no problems with any of the wiring. So with out further delay the wires:
There are about 12 wires that run from the ECU up into the dash, those will be cut. The following wires matched up perfectly on both the SR ECU harness and the KA dash harness:
Yellow / Red stripe - Tachometer signal Yellow / Green stripe - Speedometer signalOrange - Ignition startBlack - GroundBlue / Green stripe - AC signal Blue / Black stripe - Water temp signal
These were cross-verified in the 90 KA FSM and are correct.
On the KA, the rest of the wires (green, gray, light green, purple, red / yellow stripe, gray / yellow stripe) all are listed in my KA FSM as going to the 'check connector'. I'm not sure but I think the rest of the wires on the SR ECU harness (green, green / black stripe, green / red stripe, green / white stripe, orange / black stripe, Red / white stripe) go to the 'check connector' also. I have not hooked these up.
As an added bonus, that I found out recently, using the ECU from an auto in a manual car eliminates the top speed fuel cut. I've had the needle pointing at the trip meter already. But thats another story hope that help. If you need further help just email me at [email protected] just put DOHC swap in the subject line so I don't delete it.
Shaun
There are about 12 wires that run from the ECU up into the dash, those will be cut. The following wires matched up perfectly on both the SR ECU harness and the KA dash harness:
Yellow / Red stripe - Tachometer signal Yellow / Green stripe - Speedometer signalOrange - Ignition startBlack - GroundBlue / Green stripe - AC signal Blue / Black stripe - Water temp signal
These were cross-verified in the 90 KA FSM and are correct.
On the KA, the rest of the wires (green, gray, light green, purple, red / yellow stripe, gray / yellow stripe) all are listed in my KA FSM as going to the 'check connector'. I'm not sure but I think the rest of the wires on the SR ECU harness (green, green / black stripe, green / red stripe, green / white stripe, orange / black stripe, Red / white stripe) go to the 'check connector' also. I have not hooked these up.
As an added bonus, that I found out recently, using the ECU from an auto in a manual car eliminates the top speed fuel cut. I've had the needle pointing at the trip meter already. But thats another story hope that help. If you need further help just email me at [email protected] just put DOHC swap in the subject line so I don't delete it.
Shaun