ENGINE MANAGEMENT/AFTERMARKET ECU FOR RB25DET

Discuss the RB20, RB25 and RB26 series engines.
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USMCgetsome
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HOW GOES THE DAYS FELLAS... FUN QUESTION FOR EVERYONE SINCE NO ONE REALLY GIVES AN ANSWER. I AM DOING RESEARCH FOR AN **ENGINE MANAGEMENT SYSTEM** ALREADY HAVE AN SAFC-II INSTALLED BUT I WANT AN ECU THAT DOES AIR FUEL AND IGNITION. ANY IDEAS????


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NISMO_RB25
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Apexi Power FC

Do a little searching, this was a hot topic on the forum for a while.

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USMCgetsome
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anyone had expierence with WOLF3D, HALTECH OR MOTEC STANDALONE ECU

DSMs_Suck
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Power FCs are cheap.also the microtech i hear is very good and is pretty close to plug and play. Both of these setups are easy to install, relatively inexpensive, and have been proven time and time again.

If you have a lot of money and don't mind rewiring alot of the car then you could consider the motec or maybe tecX.

Murray

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USMCgetsome
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OK FELLAS HERE'S THE MAIN REASON.. MY MECHANIC HAS HAD THIS VEHICLE FOR 6MONTHS NOW AND HERE ARE THE INCLUDED UPGRADES...

MCKINNEY MOTOR MOUNTS AND AXLERB25DET ENGINE HARNESS AND TRANNYAND 2.5 STOCK EXHAUST

HERE'S THE PROB BEEN THROUGH 2 ECUS AND NO IGNITION. I WANT TO BYPASS THE ECU WIRING FOR IGNITION. I JUST FOUND A GREAT STANDALONE FROM AUSTRALIA CALLED WOLF3D VERSION 4 PLUS AND IT SEEMS TO BE WHAT I'M GOING TO GO WITH.

TRYING TO AVOID A PLUG IN ECU OR OTHER OPTIONS

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krayton
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whats with the caps? you arent at some business where you are a data inputer are you?

as for the car. who did the engine harness? if its not the ecus then you a standalone is not gonna fix your problem.

also remember when picking a standalone, that someone needs to tune it. so if you get some australian based standalone, you will need to know how to tune it.

DSMs_Suck
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Hate to say it... but it sounds like whoever is doing your swap isnt doing something right.

First off if you have been through 2 ECUs with no ignition I HIGHLY doubt it was 2 bad ECUs. I would think that it probably has a problem with the wiring harness or the ingitor (power transistors). Has he checked this yet? If not I'm sure we could outline something that will help you (and him).

IMO you shouldnt HAVE to buy an ECU, especially when you have just a basic (maybe BPU) swap. Don't just throw an expensive bandaid at it, when you have a real problem that should be fixed.

Murray

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Nameless EJ6
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DSMs_Suck wrote:Hate to say it... but it sounds like whoever is doing your swap isnt doing something right.

First off if you have been through 2 ECUs with no ignition I HIGHLY doubt it was 2 bad ECUs. I would think that it probably has a problem with the wiring harness or the ingitor (power transistors). Has he checked this yet? If not I'm sure we could outline something that will help you (and him).

IMO you shouldnt HAVE to buy an ECU, especially when you have just a basic (maybe BPU) swap. Don't just throw an expensive bandaid at it, when you have a real problem that should be fixed.

Murray
Word.. get the ignition **** fixed then move on. Caps lock button is located below the tab key on the left. Unless you don't have one...

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USMCgetsome
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i'll have an answer to you guys by tomorrow. very true about tuning doesn't seem to complicated with the software that is added with the package. i'll have to talk to him about the ignition what he has and has not done. if i remember correctly something was wrong with the wiring to the ignition. soo i figured if we went aftermarket totally by passing the relays and bs going straight from the new ecu to the coil packs then that would solve the prob.

and whats with the caps comments. why is it considered soo damn offensive.... ???

Joe
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KUILLIN_DRIFTER wrote:i'll have an answer to you guys by tomorrow. very true about tuning doesn't seem to complicated with the software that is added with the package. i'll have to talk to him about the ignition what he has and has not done. if i remember correctly something was wrong with the wiring to the ignition. soo i figured if we went aftermarket totally by passing the relays and bs going straight from the new ecu to the coil packs then that would solve the prob.

and whats with the caps comments. why is it considered soo damn offensive.... ???
why not just fix the wiring issue? it shouldnt take more than a couple minuets at the MOST to run a set of new wires and solve the problem not to mention save you a ton of money and headaches. you are gonna try and run a standalone that probably not 1 person in this country has run on a RB or knows how to tune to the best of its ability? man i can only see the headaches. you are trying to do something thats called "shotgun" troubleshooting. instead of fixing the actual problem you are just replacing **** till the problem goes away.

and caps lock is offensive because its annoying to read, it also indicates you are yelling.

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BoostFab
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KUILLIN_DRIFTER wrote:and whats with the caps comments. why is it considered soo damn offensive.... ???
on the Internet world, all caps means you're screaming. IMO it's very annoying to read. i'm sure you know that??!?!

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USMCgetsome
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hmm.. i'll get the right story from my mechanic tomorrow. i believe since i purchased the car from a member in here it came with an rb20det and apparently whoever installed it had it running but didn't do the install correctly. soo far even the mounting was improper for the rb20det. so when we did the swap for the rb25det i decided to ensure we had new motor mounts and well i saw the rb25det package and it looked in great condition. soo this is the choices that he had for me. either get a new chasis and swap everything out or get a new harness or go aftermarket. that is if i remember the story correctly.. i'll have to ask again and get the detailed info that way you guy will understand whats going on. i am really pissed but i've already dumped a whole lot of money into the project. soo what choices do i really have. the blame goes to the original car and it's wiring. or soo it seems. the swap is in and the motor mounts are in with some welding and adjusting the fuel is there but no spark.

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JonPowell
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If you need help, I am not that far away.....

[email protected]

Who is installing?

IvoryJ30t
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going standalone just because the car has a wiring/PTU problem makes about as much sense as selling the car because it needs an oil change.

get the wiring schematics, and give them to the mechanic.

if he still cant figure it out, tow the car to someone who knows what there doing.

at least you have a spare ECU now.

if they are having trouble getting the wiring sorted, i would hate to see what their custom wiring harness for a standalone would look like.

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USMCgetsome
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i will take the word of the wise men that have spent hrs on thier rb25's so my mech will be called tomorrow. i appreciate all the ideas and advice.

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USMCgetsome
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by the way anyone have a wiring diagram SERVICE MANUAL or some sort of schematic for the ignition system for the rb25det

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BoostFab
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JonPowell wrote: I am not that far [email protected]
that seem like a better idea ---^

i'm not sure about a regular mechanic....doing this kind of swap....hmmm

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eh?
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see sig for wire diagrams (sI rb25)

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lyon23
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KUILLIN_DRIFTER wrote:hmm.. i'll get the right story from my mechanic tomorrow. i believe since i purchased the car from a member in here it came with an rb20det and apparently whoever installed it had it running but didn't do the install correctly. soo far even the mounting was improper for the rb20det. so when we did the swap for the rb25det i decided to ensure we had new motor mounts and well i saw the rb25det package and it looked in great condition. soo this is the choices that he had for me. either get a new chasis and swap everything out or get a new harness or go aftermarket. that is if i remember the story correctly.. i'll have to ask again and get the detailed info that way you guy will understand whats going on. i am really pissed but i've already dumped a whole lot of money into the project. soo what choices do i really have. the blame goes to the original car and it's wiring. or soo it seems. the swap is in and the motor mounts are in with some welding and adjusting the fuel is there but no spark.
correct me if I'm wrong but sounds like the car had an RB20 in it and you bought a RB25 motorset without the harness and you're trying to make it work with the RB20 harness. If this is the case I'm not sure but it'll be a good question and ask if this can be done or would you need to install the rb25 harness to make it work.


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