Just a few questions

[Ron240sx]

So my DE to DET conversion is going well with a full rebuild. Im left with fuel injectors and a timing belt.

My concern is I have a DE harness I got from DEE a couple years ago.
My engine was orginally a DE also. Yet came with a knock sensor. Though ive read the DE harness does not have a knock sensor plug wired in? What can I do about my knock sensor? Without having the connector?
Ive been reading about the dropping resistor for the fuel injectors and can someone chime some light on this with a DE harness?
Next thing is im going to increase my injector sizes. The size ive yet to decide on. Any input on injector sizes with running a max of 20 to 25 psi from the turbo?

Then im debating on using nistune?

This engines about ready to be put back in. Its just a few things away and with you guys help id be able to feel secure and confident that All will be going well with this quite expensive engine.

Thanks

[aintnobiscuit]

What turbo?
What fuel pump?
What is your horsepower goal?
Do you have an adjustable fuel pressure regulator?

[float_6969]

Is this a RWD DE? If so, I thought the JDM RWD DE's DID have knock sensors factory, it was the USDM FWD CA's that didn't have them. I could be wrong on that though.

As for the dropping resistor, AFAIK, ALL CA18DE(T)'s had them. The only issue was that the EDM CA's had them on the chassis harness, not the body harness, so you had to do some extra wiring because they weren't there.

Can't say anything about injectors until you've answered aintnobiscuit's ?'s.

Nistune is reputable and well tried. I have no experience with it, so I can't attest to it personally. I will say that if it's like most standalone's, trying to tune it if you've never tuned before can be a seeming insurmountable task.

[Liquid_Neon]

I can tell you 100% that the usdm ca18de has a knock sensor.

also my ca18de pulsar did NOT have dropping resistors, but a ca16de pulsar would. So when i installed my det injectors i had to add the 10ohms to the harness myself (radioshack sells 'em).

[boost_boy]

As stated the RWD CA's all have a knock sensor on them. The Knock sensor wiring is on the secondary wiring and not on the factory engine harness. As stated, all CA18DE engines had knock sensor, but their knock sensor wiring is also on seperate harness. As stated, the USDM CA18DE engines did not have a dropping resistor, but the CA16DE's set-up did. You can wire-in a dropping resistor from a mitsubishi eclipse or use the dropping resistors from Radio Shack as the "Liquid" man stated. Your engine harness is not the issue as they are nearly identical between the DE and the DET minus the drooping resistor and a couple of other solenoids.

[Ron240sx]

On my engine harness theres a little Jecs silver box. Its got two white wires connected to two orange wires on the harness. Is this this the resistor or something else? It sure looks just like the the rest of the dropping resistors minus it being a two wire connector. So if my knock sensor connects to my ecu how am I suppose to route it through the secondary harness?

If i had the intentions to run 15psi on a T28 with a walbro 255 fuel pump, with an adjustable FPR will 550cc injectors make the cut or should I go bigger?

I think im going to be using Innovative wideband as its said to be a great wideband... any input?

[boost_boy]

On my engine harness theres a little Jecs silver box. Its got two white wires connected to two orange wires on the harness. Is this this the resistor or something else? It sure looks just like the the rest of the dropping resistors minus it being a two wire connector.

No, it is not a dropping resistor. You'll need to wire one in to your existing harness or add radio shack resistors to your injector wiring.

So if my knock sensor connects to my ecu how am I suppose to route it through the secondary harness?

Tap into the knock sensor wiring running from the ecu and run it to your knock sensor. It's a white wire.

If i had the intentions to run 15psi on a T28 with a walbro 255 fuel pump, with an adjustable FPR will 550cc injectors make the cut or should I go bigger?

That's enough.

I think im going to be using Innovative wideband as its said to be a great wideband... any input?

It won't hurt anything to use it.

[float_6969]

I have 2 Innovate widebands. One for the CA S14, and one for the Mazdaspeed Protoge. They're good units.

[boost_boy]

Are you datalogging with your widebands or are you monitoring/referencing?

[float_6969]

Both on both cars. The S14 has my first innovate permanently installed. One output connects to the SDS for dataloggging, the other connects to a glow shift wideband AFR gauge. On the Protege, I was going to install it permanently, but halfway through the installation I realized you can't install it before the turbo, and the stock sensor is pre-turbo. The only other spot is after the catalytic converter, so that doesn't work either. So I pulled it back off and put it on the CA to test it and make sure it worked, then pulled it back off. I have a new downpipe for it that will require a new section of exhaust installed, so I'll have a bung installed for the wideband then. Once it's installed, the wideband will be permanently installed with one output running to the ECU(which also connects to the piggy back for dataloggging) and the other to the AFR gauge.

[sjbsuperman1425]

i have the Innovate Wideband permanetly installed and I love it. Works great and dont have any issues at all. I'd recommend it to anybody