Hey guys,

Got a ca18 here in a bmw chassis. Tried the stock ecu and couldnt get it to run. Tried megasquirt and had a fried board. My latest idea is to get a standalone universal loom from wiring specialties. I was going to get a CA loom however I have 2 power fc's to suit sr non vct (I have a sr track car).

Could I get a SR20 standalone universal loom and run the sr20 power fc on the CA? I have read about people repinning a CA loom to suit the SR ecu but I want to go one step further and get the whole loom. Then just change the CAS plug and I can purchase the loom with Bosch injector plugs and z32. Then with the power fc I could tune to suit.

Would this work?

Cheers
Brad

It's needlessly convoluted. You can gut a corpse through the butt, but it's easier to slit the belly. Get a flying loom standalone and be done with it.

what do you mean by flying loom standalone?

A power fc for a CA18 isnt the easiest to get. I have 2 power fc's for SR20. The loom price is the same for each. Would it not run the engine the same? More or less...is the CAS disc the same in both Ca and SR?

They both fire in the same order. They both have 4 cylinders. They both can run bosch plug injectors and is a feature on the loom. I was hoping I could just run the SR gear and tune to suit. Otherwise I have to go CA18 loom then pray my stock ecu works, then when I upgrade power im either going to be searching for a power fc or installing a nistune.. If this way will work it will be cheaper and easier correct?

Put the standalone's sensors where the stock stuff was and toss the whole crusty OE harness.

To answer your question, yes, you can run an S13 SR Power FC. That being said, I've had a CA18 PowerFC and tuning them with the hand held is a pain to do unless you're just changing MAF sensors and injectors. Actual fuel and timing programming is a nightmare.

Call wiring specialties and ask them about doing a custom harness for you. It's not that much more expensive than their PRO harnesses.

They converted their PRO SR20 Tucked harness for my CA. Instead of the standard blue nissan ECU plug mine plugs directly into my Haltech PS1000. Works awesome! I'll actually be doing a small writeup on my setup when I find the time for those that are interested.

I have a car right now that was running an SR20DET ecu via CA18DET harness. It was set-up to burn rom chips and have all the accessories to go with it including extra SR20 ECUs. I can let you have the lot for a nice price. I have other plans for the car, so I don't really have no use for it, although it was pretty cool to see it. Pics can be provided if needed.

hmm could be keen. How much were you thinking?

over here ca18s are getting more expensive as they get rarer. What should I do with mine? I beleive it is a NA motor that ive strapped a turbo to. Its got 165 125 125 145 compression dry and 185 145 160 180 with oil in the pots. Hence why I dont want to spend a lot on an ecu in case its not going to run haha

I'll tell you right now, that motor has ISSUES. Likely a blown HG between cylinders 2 and 3. It's also going to burn oil like it's a diesel. That thing needs a rebuild, not an ECU.

haha yea I know it has issues. It was never built to last the first time round and now im paying for that mistake!!!

It has a fresh headgasket in it as I bought it for $100 with a blown head gasket. Rebuilt it with a MLS gasket, gates timing belt, fresh water pump etc etc. Never touched the bottom end though as I was told it was good.

It should still run even if it runs very poorly. Once it is running I will invest in either a rebuild or a fresh engine. However with the stock ecu I cant get spark and with the megasquirt I cant get anything anymore haha :S

My stock loom is a chopped up mess after trying to get it to work. Hence why im not sure what is going to be the cheapest and best for my wallet as I have to build a new track car, new trailer and fix my tow car so this car is sort of on a budget again haha

Check your PMs

Wont let me PM you back But yea def would be interested. So when you say it has all ROM burning stuff how does it work? Do you have to go change things in binary? How would I go setting it up to run 440 gtr injectors and a z32? Unless you want to let those 550s go cheap :p

ok so, I have a spare 180sx shell with a complete sr20 loom, ecu, ignitor pack etc etc. Could I pull that out, swap my CAS plugs (already checked and they swap pin for pin and the wheel inside is the same from what i can tell), swap injector plugs and change my coil pack loom plug over if need be and get it running like that?

I may have another engine for it. Has a knock from what im told but ill check it out before I buy it

I would be willing to part with the injectors as well. Everything goes, my friend. I never swapped the harnesses, but I'm sure it can work. I know this harness was already set-up in the car I purchased. It's SR20DET ecu is chipped, the harness is set-up and attached to the CA18DET engine and it's already detached and ready for a new adventure.

boost_boy wrote:I have a car right now that was running an SR20DET ecu via CA18DET harness.

Good day. Can you specify SR20DET ECU code or make a photo of ECU sticker? Need to know which ECU from S14 match the CA18DET harness connector shape.

http://h-dev.co.uk/index2.php?page=ecutype

The top one is what you want. 3-3-3-4 or is it 4-3-3-3? Either way, the other one (the one that you DO NOT WANT) is 4-2-2-3 (the 2's are surround the bolt that attaches the loom). This means that you want the zenki S14 ecu.

Beware. Some people from different parts of the world (like Australia) call the kouki ecu an s14a. The zenki one is just called s14 ecu. Enjoy.

Izento, thanks! So I need 76-pin ecu, not 64.