Questions

[kingersman]

hey guys just got a few questions.

would a 98 sti ecu work on my v2 wrx?

i know it will need tuning and what not but will it work?

also were is a good place to get a tune?

[Koom]

You can make it work. No its not a straight plug in fit and yes there is alot of hard work to be done to make it work. I'm not sure if Kamineko's thread is still on here about doing the same conversion. No way to "tune" these ECU's either. Either it works or it doesn't and easiest way for it to work is to have all the 98 STI stuff on the engine.

[kingersman]

ok cheers for that. my current ecu was messed around by the previous onwer and well i can get a free 98 sti ecu for free...

[kamineko]

recommended only for masochists

seriously, save for a plug in tunable ecu and have it tuned to your car. wish i did.

[WRXER]

 kingersman said:

ok cheers for that. my current ecu was messed around by the previous onwer and well i can get a free 98 sti ecu for free...

Did you buy it off a guy called Elliott in Hamilton, as I can ask him what he did to it?

[dubbedup]

Somewhere in the chaos that is my shed I have a V1 ecu - which should be direct plug in, yours for a box of beers... ;D

[kingersman]

the car maybe... i know 2 of previous owners but theres 1 i dont know of.

last owner told me that the ecu got flashed or something and since then the afm has been throwing errors.

its also running rich dont think it was tunned to the exhast or anything

[dubbedup]

have you tried swapped the afm for a known good one?

[kamineko]

it should be possible to run the factory tune on a v1/v2 ecu by resetting the eprom jumper inside the ecu. take us a photo of the board inside the ecu case

[WRXER]

 kingersman said:

the car maybe... i know 2 of previous owners but theres 1 i dont know of.

last owner told me that the ecu got flashed or something and since then the afm has been throwing errors.

its also running rich dont think it was tunned to the exhast or anything

Geez really I thought only Elliott had it lol he is a member on here, hmm a simple reset should suffice. It has always been running rich though, I think I still even have the dyno sheets. It got 147kw atw at 12psi, and was running really rich which Steve Sinclair said wasn't neccesarily a bad thing.

[Guest]

i managed to get a 1998 STi ecu to fit my car, it was 4plug and it was direct plug in. worked fine.

[kamineko]

 travel express said:

i managed to get a 1998 STi ecu to fit my car, it was 4plug and it was direct plug in. worked fine.

your car must be the same generation as the 98 ecu. kingersman was asking about using an ecu 2 generations newer than his car

[Guest]

my car is a 1995 shape. i dont do versions.

[Guest Oscar]

 travel express said:

my car is a 1995 shape. i dont do versions.

Then it wasn't a 1998 ECU. They are 3 plug.

[Guest]

it is a 4 plug. and it is 1998.

[Guest Oscar]

Let me guess, someone has written on '1998' on it with vivid?

[Guest]

ur mum did before I fitted it, Roflcopter :-*

[Guest Oscar]

Try harder next time.

[Guest]

Next time we go on club cruise, remind me to bring the mines 98' ECU with me, and I'll show you,

Its not my fault you think your an "A" grade Subaru technician, it's good to know things, but it's even better to learn new things too.....

rather than being so tunnel visioned all the time.... but hey if your always right, then it won't matter.....

Srry if yo don't believe me, but hey I have done it, Have you?

[Guest Oscar]

No you don't understand. A '98 is a V4. V4 are 3 plug, like the V3.

I'm no A grade technician. I'm barely scrapping by as an E grade bolt destroyer. But I can tell you that the V4 Impreza ECU has a 3 plug setup.

[Guest]

Here's some pics I just took, This came out of a 98' STI

Clearly we can see this is four plug, you can get a 3 plug adapter harness for them though.

niiice

[BC5RA]

That ECU is out of a 1994 WRX RA and will run 11.4psi without whatever parameters MINES has performed on a board for it.

It is not a 98 ECU by any stretch of the imagination.

How you are running it in a 1998 3 plug loom is unproven.

[Guest]

ok..... nice work, thats why we were running up to 20lb with it?

without boost tap installed, I love the amount of know it alls here, I showed the Sub tech boys this and they can't accertain what year it's from by just looking at it, But you can in less than 3 minutes, But I have had this in a 98 rex without dramas, good work.

[BC5RA]

 travel express said:

ok..... nice work, thats why we were running up to 20lb with it?

without boost tap installed, I love the amount of know it alls here, I showed the Sub tech boys this and they can't accertain what year it's from by just looking at it, But you can in less than 3 minutes, But I have had this in a 98 rex without dramas, good work.

In fact it took me less than a minute to identify.

You were probably running 20psi due to the map burnt onto the eprom board that MINE's installed; that much is obvious.

Whats not so obvious (to you) is how much of dick you are coming across.

[Koom]

 travel express said:

ok..... nice work, thats why we were running up to 20lb with it?

without boost tap installed, I love the amount of know it alls here, I showed the Sub tech boys this and they can't accertain what year it's from by just looking at it, But you can in less than 3 minutes, But I have had this in a 98 rex without dramas, good work.

If the Sub Tech boys knew their sh** they would look up the W9 *** *** *** etc etc code thats on the ECU and tell you probably the same information that BC5RA searched and told you. I'm sure that identification of ECU's is probably noted somewhere on the internet. My guess is that if you're running it with a 3-plug harness adapter, then its some abortion that Mines created so that they could get rid of old stock of 4-plug ECU's and just write the chip to suit the 98 STI Engine.

Also BC5RA never said that your ECU would only run 11.4psi, he said the original ECU would run that much before Mines then messed with it. Learn to read before spouting off like an even bigger know it all than the rest of us on here :