s5fcdrifter

Well, the RE ecu that I bought got here today. I was so excited I got dressed and went straight to the car to plug it in and test out the ecu.

I unplugged the old ecu and hooked this one up.
Started the car...and..... running on 1 rotor....

I hooked up the old computer that i was running before and started the car and it ran fine.

It seems that every time i get something for my car i get screwed somehow....

My friend that knows a good deal about rx7's and works on his own all the time is coming over later and said something that it could be the resistors.. do you think that could be a problem? Because when it comes to this electrical stuff and all im not the best but hes checked and replaced resistors in his ecu so i trust him.

Im asking you guys though does that sound logical that it could be a bad resistor?

Any input would be greatly appreciated

Bukwild

Is this the ECU you bought off ebay? This could be the major reason it was on ebay.

s5fcdrifter

yesit is the ecu i bought off of ebay, i already contacted them, but the place is over seas so its prolly the middle of the night there so they prolly havent read the email yet.

FC3S.USD

iTrader: (2)

Damn that sucks,

I hope you get it fixed, On the other note, Is your T2 moded ? . Usually chipped roms are tuned to specific cars ( the RE A ones ) . They do have some chipped ecus that just adds more fuel and takes away fuel cut ( general chipped roms like the knight sports one ).
But you should get it checked.

As it might be tuned for bigger secondaries ( maybe 1600's or 1200's ) so if its running
50 % of the 1600's its not equal to 50 % of the 550 cc's. ( wich means lean up high in boost
) .

Anyways my 2 cents might be totally off, I just remeber that from when i wanted to get a chipped RE ecu
And also it might be tuned for controlling terciari injectors

Bukwild

do yourself a favor and go back to the stock ecu and throw that ebay bullshit in the trash. Why chance a 2k motor on somthing someone tried to sell you from overseas.

Don't buy a ecu because so dipshit put a RE sticker on it.

s5fcdrifter

yeah its got some bolt-ons...i.e. downpipe,presilencer,exhaust, intake....

the ecu was supposivly tuned for 12pounds on stock injectors and a built in fcd.

someone told me that s5 n/a and t2 injectors are different.... i was told that i have s5 t2 injectors, but maybe i have s5 n/a injectors for some reason... what is the color ons5 t2 injectors. Could that be whats wrong? are the n/a and turbo injectors dfferent impadences (sp?)

any input is greatly appreciated

i'll post pictures of the ecu later so that you guys can see

Bukwild

s5 na injectors are 460cc and s5 t2 injectors are 550cc thats the only difference. And you wouldn't be running 12lbs of boost on 4 460cc injectors for very long.

s5fcdrifter

i just dont understand how both turbo ecu's i have are doing the same thing but my n/a one is fine... its confusing.. maybe both of em are messed up the exact same way... :/

Node

iTrader: (1)

wait, what year is your car, and was it a turbo or non-turbo to start with?

s5fcdrifter

the year of my car is 91.
orginally non-turbo converted to turbo...... motor, tranny, driveshaft, rear-end.

totallimmortal

does anything need to be wired different for the turbo ecu?

gildardo

Do you have the turbo harness.


Gil

FC3S.USD

iTrader: (2)

Ok so,

You have right now a NA body with full T2 conversion.

- Are you running a stock T2 Ecu before you swapped the RE A ECU ?

-Did the stock T2 ECU ( what code 370 ? or 332, 333 or 318 ) work fine ?

- ARE you running the car on a NA ECU

- Get your injectors cleaned and balanced And ask them what size they are. If there 460 cc i would probably get a nice set of 550's

s5fcdrifter

- yes, NA body... full t2 conversion
- I have an N370 t2 ecu next to me..... i hooked it up and it does the same thing that the RE ecu does.... I bought the RE one thinkin that "ok, this t2 ecu is messed up and not sending injector pulses to the injectors".... so i bought this RE one thinkin it would be all better.
- Right now i have the NA computer hooked up because it runs perfectly fine with the NA ecu

-Today i checked what injectors I have and i found out that theres s5 n/a injectors in there.....

gildardo

I have had one scrued up like yours, with only have the engine working. I replaced it with another one and the car is fine. Maybe the RE amemiya is scrued up to....


Gil

s5fcdrifter

i had a previous t2 ecu and hooked it up and it did this same problem, thats y i bought the RE ecu and its doing the same thing... im gonna hook up my RE ecu to my friends car tomorrow if i get a chance to see if its the ecu or for some odd reason my car hates turbo ecu's :/

Bukwild

when you did a t2 swap you didn't use a t2 ecu and wiring harness? These are both different from the NA one your car came with.

s5fcdrifter

i used the n/a wiring harness in the engine bay because ive read that its all the same with the exception of a few wires... for example like the VDI wire u use it for the knock sensor.

lnlycrpr

You know... i kinda wanna add to this thread. I have done the full TII swap in my car. I used a S5 JSPEC motor/tranny w/ ASPEC S5 TII harness. I purchased a JSPEC S5 ECU (N3Y4) for ***** a giggles and it did the same thing that S5fcdrifter's ECU is doing. I was only running off of one rotor, it ran and sounded like ****, and it almost killed the battery every time i tried to start it. I had a ASPEC TII S5 ECU (N370) luckily and swapped it out with the JSPEC ECU and it started up fine and I haven't had a problem.

The ASPEC harness plugs into BOTH ECUs just fine. I've read threads about people running JSPEC ECUs in their ASPEC TII's w/o problems, but it seems odd that s5fcdrifter's and I's JSPEC ECUs are acting up like this. Is it that the ECU's are fried or is there something different with the pinouts on the JSPEC ECUs? Does anyone have knowledge of this or can they provide some info?