Drop Resistor?

Discuss topics related to the CA18DE and CA18DET series engines.
XtremeHKS
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Is this needed?

Can I just use my stock one?


XtremeHKS
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Yes you do need it, and no you cant use your stock one!

Nevermind i searched :)

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biosehnsucht
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Stock one? :P

FYI, the dropping resistor is 6 ohms, and the pinout should be in the FSM..

edit: this pinout info I gave here is wrong, look to my post below for corrected information, or check the FSM. Leaving post incorrect rather than fixing it so as not to break thread continuity

basicly:

(looking towards harness, made-up pin names, harness snap-in clip thingy on top)1 &nbsp &nbsp 2 &nbsp &nbsp 36 &nbsp &nbsp 5 &nbsp &nbsp 4

between 1 and 6, 2 and 6, 3 and 6, 4 and 6 should all be 6 ohms resistance. nothing on 5, its not really there.

of course you need beefy resistors that can resist the heat, cold, and power requirements..

XtremeHKS
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biosehnsucht wrote:Stock one? :P

FYI, the dropping resistor is 6 ohms, and the pinout should be in the FSM..

basicly:

(looking towards harness, made-up pin names, harness snap-in clip thingy on top)1 &nbsp &nbsp 2 &nbsp &nbsp 36 &nbsp &nbsp 5 &nbsp &nbsp 4

between 1 and 6, 2 and 6, 3 and 6, 4 and 6 should all be 6 ohms resistance. nothing on 5, its not really there.

of course you need beefy resistors that can resist the heat, cold, and power requirements..


is this it?

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Nismo1182
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No thats not it. Ive only seen that on a few automatic equiped swaps. My friends had it and mine didnt.

The drop resistor is much bigger than that. Theres a pic floating around a few thread down somewhere.

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biosehnsucht
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Looks like the dropping resistor to me, based on the what it looks like in the FSM.

if thats not it, then it looks almost like it.

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Nismo1182
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No thats not it. That one even has a single plug going to it. The drop resistor has a big 6 prong plug and its 3 times the size as that.

That, I dont know what it is. Ive seen it on a few cars that were automatic and mine never had it. It didnt even have a plug for it when I got one from a friend.

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rico05
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That is a dropping resistor.

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biosehnsucht
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You're right, it was hard to tell but that is only one wire, the one rico posted IS a dropping resistor, but you can see they're both similarly (except for scale) packaged.

If the other was only on automatics then maybe its the automatic resistor gizmo people screw with to make them shift faster?

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iliketocrash
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i don't believe i have a dropping resistor... are they easy to get ahold of or what do i have to do to get one?

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Nismo1182
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I have one for sale ;-)

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float_6969
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I think the CA16 uses them also.

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biosehnsucht
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from Euro FAST part # for CA18DET dropping resistor is 22698-36F00, USDM part #'s that MIGHT work (would need harness rewiring as harness connectors appear to be differently pinned) are GA16 22698-84A00 and CA16DE 22698-R2000, interestingly none for CA18DE..

Check KN13 FSM page EF&EC-78 (page 208 of the PDF), altho this appears to be Australian FSM for CA16DE..

you see the diagram for dropping resistor isn't the same as the CA18DET.. the resistance is listed as being 6 ohms tho, still, so just have to adapt the wiring to match, at least for CA16DE. Likely, they used yet another wiring hookup for the GA16 but is still 6ohms since thats pretty standard for dropping resistors.

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biosehnsucht
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OK I was wrong, I will edit my post above with incorrect pinout, to say look down here.

the fuel injection diagnoses guide I was looking at for CA18DET has the wiring for the dropping resistor wrong, but the FSM itself shows it as identical to CA16DE, so it might even plug up, if the harness connectors are physically the same.

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float_6969
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I thought they were supposed to work....

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biosehnsucht
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Probably will. different part #'s, but some pinout at least for CA16DE and same resistance values, so as long as the physical connector is the same you should be fine.

nab911
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I have that other little thing that says jecs but mine is a 5 speed... is it possibly just a change from an automatic and do i need to have it hooked up?

XtremeHKS
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nab911 wrote:I have that other little thing that says jecs but mine is a 5 speed... is it possibly just a change from an automatic and do i need to have it hooked up?


Supposedly your vehicle will not run because your injectors will not be grounded.

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biosehnsucht
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I think he meant the first pic posted, not the actual dropping resistor ... clarify?

XtremeHKS
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biosehnsucht wrote:I think he meant the first pic posted, not the actual dropping resistor ... clarify?


Oh yeah, what is the little thing I have a pic of, even im not sure.

nab911
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Yeah the first pic, not the dropping resistor but the other little thing.

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Nismo1182
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I dont know what that little thing is. Mine didnt have one and it didnt have a plug for one.

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biosehnsucht
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Anyone who has the plug for it, can you say where its located on the harness?

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biosehnsucht
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To help clarify where to find the dropping resistor harness connector, at least according to UK FSM (figured I'd post it rather than just tell one person, so if others need it it's here)

From FSM pages EL-102 & EL-103 (103 has the labels for the connectors; PDF pages 868 & 869)

XtremeHKS
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Can someone verify the similarities between ca16de drop resitors and ca18det

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Nismo1182
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biosehnsucht wrote:Anyone who has the plug for it, can you say where its located on the harness?


On my friends swap, it was near the drop resistor.

Of all of my left over plugs, nothing plugged into it or matched it.

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biosehnsucht
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Aha I just noticed sepereate diagram for RHD models, page EL-104 & EL-105 (PDF 870 & 871), which would probably where we'll find it on the JDM harness too.

FYI F31 is the A/T Dropping Resistor, which is likely whats pictured above the injector dropping resistor in the thread.

XtremeHKS
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biosehnsucht wrote:Aha I just noticed sepereate diagram for RHD models, page EL-104 & EL-105 (PDF 870 & 871), which would probably where we'll find it on the JDM harness too.

FYI F31 is the A/T Dropping Resistor, which is likely whats pictured above the injector dropping resistor in the thread.


22698-84A00 is the correct part number for the ca16de dropping resistor

XtremeHKS
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http://home.urban.net.au/gts18...n.pdf

says, "you can find the dropping resistor in the 87 Pulsar NX SE"

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biosehnsucht
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-84A00 according the US FAST is for the GA16, not the CA16. CA16 is the other part # I gave.

Now, granted, 2 to 1 they are totally interchangable.


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