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classic impreza ecu location


stuartie
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Sound i,m still waiting to hear back from mr forrest so looks like i'll just be going ahead with the new esl/ecu and probs be looking into getting some injectors and a map sensor. Do these fit straight on or will i have to modify wiring etc for it all to work correctly, thanks again for all your help :biggrin:

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No problem bud [emoji106]

Afaik The v3 to v6 map sensor just plugs in but it has to be calibrated by the mapper in order for it to work (5 mins to fit and best done on the day after the esl'd ecu's been fitted )

Yours will have a phase 1, side feed fuel set up ,so phase 1 yellow 440's will drop straight in but these are getting thin on the ground now days . The other option is phase 2 yellow 440's these are found in all v5/v6 imprezas and will fit into your rails with "phase adapters" .

Both sets of yellows have the same plugs (so there's no wiring mods needed) but once fitted the car will be running very rich due to the bigger injector capacity pushing more fuel in .

So if you do have to drive it to Andy bear this in mind and keep it under 3k and off boost .

If it's not broke .....upgrade it 😊

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Exellent cheers mate :thumbsup:. Was just having a look around eBay and your right the only injectors going around are from the later phase 2 models. Do you know where i'm likely to pick up some adaptors for them or will they just be on the bay aswell. I could always ask the guys at work as a couple of them look after rally cars and they may just have something kicking about.

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Will try them pal probs not till end of the month though as its the wifes birthday soon and i dont think the excuse of i never got you anything coz i've been buying parts for the scoob will wash with her lol also going to croft for the btcc next week so thats more funds out the window. Thanks alot again savage you've been very helpfull, will keep you all posted on my progress :rolleyes:

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Here we go again folks just a quick update, i got an email back from andy last night and all he said was that he didn't recognise the chip which is in my ecu and therefore could'nt map the car i emailed him back asking if i have any other options but still waiting to hear back from him ( he's a very busy man ) so my question is can anyone see what chip he's on about coz would have thought he would have told me it was standard if it hadn't been modified. Do you think the best option is an esl/ecu replacement. Cheers everyone 

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He may mean the chip that says 'Wrx z4' on it, I know there were a few going round a while back sort of 'plug and play' didn't hear anything good about them tbh

Sent from my SM-G930F using Tapatalk

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Thanks for the reply stants, that does'nt sound to good then eh do you know if that ecu is standard to the classics as i've had a look around the bay and there seems to be loads of variations of ecu's for classic imprezas and tbh i've only seen one z4 unit on sale, also should i be going down the route of a new ecu supplied and fitted by andy, all this advice is much appreciated btw 

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Z4 is a oe ecu code that subaru put in some early jdm wrx saloons that had the tdo5 16g . It runs a bit more boost and produces 260 hp as standard.

You'd have to Google the model code of you scoob to see what ecu it should have as standard.

I don't really know much about what the standard ecu electronics should look like .As I've only ever removed the cover from 1 v1/v2 ecu and that already had a esl daughter board fitted .

I'm unsure why he can't map it and he certainly knows his stuff but I'd have thought he would have a "stock" of v1 &v2 ecu's with daughter boards already fitted . Then just taken your old ecu on a exchange basis to fit a board in that to take too the next customer. Or suggested that you buy a second hand v1/ v2 ecu (about £40) for him to fit a esl board to .

Early esl does run a different language to v3 onwards, so maybe he doesn't have the software ?

There's a couple of other ecu's that can be supplied and mapped sub £800 price tag which are available for the v1/v2 imprezas .

Alcatek /simtek ecu's about £400 second hand + mapping you'd have to check the functions via Google (as I've never personally owned 1)

I run the old apexi fc ecu about £350 second hand + mapping. which doesn't run mafless but has hand controller displays to help monitor live parameters.

Maybe shoot him a email and ask him what other option would suit your budget /needs .

If it's not broke .....upgrade it 😊

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Ok will look more into it after work, spoke to andy again last night and the only option with him is to replace the ecu or fit an esl, so i think once i have the cash together thats the route i'll be taking, i will also look up the model number on the net later just to see if the ecu is original or not, again thanks for all the advice :thumbsup:

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Well i've googled the model number of my impreza and from what i've read on various sites my car should have a w6 ecu which produces 240hp as standard and the z4 which is in the car was in the late 94-96 v2 wrx and wrx ra could this be why it is overboosting sometimes and running a bit rich, could someone previously have just plugged this into the car and just left it as is also will it be doing any damage to the engine as i've said before it seems to run fine the model code from my car is gc8a48d which ties in with when it was built according to scoobypedia

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The z4 oe subaru ecu is often used as a upgrade for the other jdm v1's and v2's that run 220 to 240 as standard. I'd imagine if the cams ,turbo,compression ratio ,fuel grade and injector size is the same . Theoretically it should work on a standard car .

I never fit any major engine mods like decats, fmic's ect .. (anything that might higher boost or airflow levels) without getting the map tweeked before I "give it some beans ".

It's probably reducing timing and over fuelling to compensate for the overboost your getting .

Have you got the standard tmic and what turbo is on it

If it's not broke .....upgrade it 😊

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It still has the standard tmic on it and i presume that its still the standard turbo aswell, i'm not sure on how to check if the turbo is standard. The car does seem to have alot of lag before it gets full boost at around 3k rpm as this is the first turbo car i've had i don't know if this is normal, does this sound like someone has just plugged this ecu in to go with the mods that are on the car which are the decat from turbo back, the apexi air filter, baileys dv and the walbro fuel pump, cheers savage all this advice is furthering my knowledge about these type of cars its rather annoying as i'm a mechanic but specialise in heavy vehicles and diesels hav'nt had much experience with cars.

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The early wrx's had a tdo5 16g as standard which is good for 350hp with supporting mods .It will have tdo5 #$## on the raised numbers located on the turbo coldside (silver compressor housing that the black air intake pipe connects to )

The decat is probably causing the overboost as it's much less restrictive than the oe catted downpipe. Which in turn is making the ecu throw in more fuel to correct the air fuel ratio .It's difficult to say if it's running safe and the only way you'll know is to get it on a dyno tbh .

3k sounds about right for a tdo5 16g to hit full boost .

Although the scooby comuitity is about the friendliest I've come across, most of the scooby specialists don't like giving trade secrets away . Hence why I'm so keen to help with what info I've picked up while working on my scoob [emoji106]

If it's not broke .....upgrade it 😊

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Again i can't thank you enough for all this info it really is appreciated👍😃. I will check the turbo as soon as i get a minute, tbh i've hardly been driving it on the boost but just been cruising along with a big smile on my ugly mug lol so hopefully no damage has been done, i think i'll try get it to andy as soon as i can but getting £700 together is easier said than done 

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