ca18de and det wiring harness interchangable?

Discuss topics related to the CA18DE and CA18DET series engines.
buddha
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Whats up,

The company that i recieved my motor from sent me a CA18DE, and were supposta send the DET. Anyway, there sending me another engine, but they said the wiring harness from the DE will work? I dont no if this is true or not, and before they send the engine out it would be nice to know if they should send the harness to. The ecu i have is 64. would this ecu work with the det? btw, this is for an s13.

thanks.


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Trigger
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i dont think the ecu or harness will work. more then likely those are for fwd motors. tell them they need to send you a new harness and ecu

Tim

buddha
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Trigger wrote:i dont think the ecu or harness will work. more then likely those are for fwd motors. tell them they need to send you a new harness and ecu

Tim
the harness and ecu are off a rwd.

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Trigger
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hmmm i didnt know that there was a DE on a rwd that might be the DET harness then

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oversteer180
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The Ecu will not work on your ca18det. They are ****ing morons. I have heard the harness can work, but its a pain in the *** to rewire it all.

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RiverRicer
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The DE harness has a couple of differences. The most noticable is the lack of dropping resistors for the injectors -- the DET needs these, the DE doesn't. Check the harness for a metal box (about 3"-4" x 2")wired into it. The box will have a mounting ear on each end to mount it to the firewall. if the harness has that, it's probably a DET or a CA16DE. I believe that you can use a CA16 harness on a DET with no problem (don't quote me on this). The second difference might be the O2 sensor plug. Some used a 3-wire for a heated sensor(sensor, 12v, ground). This won't be a problem since you only need to hookup the 1 sensor wire to the harness. I believe there's one other plug that's different, but the main thing is the dropping resistors. Find them, you've got a DET!

boost_boy
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buddha wrote:Whats up,

The company that i recieved my motor from sent me a CA18DE, and were supposta send the DET. Anyway, there sending me another engine, but they said the wiring harness from the DE will work? I dont no if this is true or not, and before they send the engine out it would be nice to know if they should send the harness to. The ecu i have is 64. would this ecu work with the det? btw, this is for an s13.

thanks.
It will work, but you need to wire in an injector resistor or add inline resistors in which you can get from radio shack which is not hard at all. If you don't want to screw with this, then tell them to send you an engine specific harness. The CA16DE harness will not work, so don't think about attempting to go this route.

Dee

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RiverRicer
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What oversteer180 said! Don't try to use the DE ecu. The eprom mapping will be way too lean for the DET, ie detonation and KABOOM! Don't know about the ecu #. I've got a #79 and a #84, both DETs.

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RiverRicer
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Let me clarify what I said about the use of a CA16 harness. I meant that the harness should work on the engine side, ie plugs, resistors, etc. To take this further, you would need to modify the harness at the ECU end to use a DET ecu, ie a CA18DET plug.

boost_boy
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RiverRicer wrote:Let me clarify what I said about the use of a CA16 harness. I meant that the harness should work on the engine side, ie plugs, resistors, etc. To take this further, you would need to modify the harness at the ECU end to use a DET ecu, ie a CA18DET plug.
Which equals, not worth it! You'd come out better using a KA24DE's harness and modify it.

Dee

buddha
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so im just gonna tell them to send me the harness, i already have a tuned ecu so it dosent matter which ecu they send

Liquid_Neon
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A DET dropped right into my pulsar, i put resistors inline to the injectors and took out the heated o2 sensor so i could put my stock pulsar one in. Oh and the plastic clips on the DE and DET are slightly differant, actully.Everything else went on just fine.

progman
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The CA18DE harness's ECU plug will not plug into a CA18DET ECU? Is that right?

candyredtd
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That is correct you need a DET ECU plug to connect to a DET ECU and vic a versa for a DE as they are compltley different.

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datsunboy
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candyredtd wrote:That is correct you need a DET ECU plug to connect to a DET ECU and vic a versa for a DE as they are compltley different.
No its not!you can PLUG a DE or DET ECU into either the DE or DET harness without any issues at all. ( not talking about the rest of the harness.....just the blue ECU plug ).They are the SAME

Dont know what CA16DE plugs are like tho.


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