jjm555

I would appreciate that, would be interested to see what's on it ( and what contributed to a blown engine). If you drop me an e-mail or PM with your address then I will send it on to you.

calgonis

UPDATE

I fitted the ECU chip this morning and wanted to let you know how I got on.

I followed the guide and these were the only issues

Getting a socket on the top ecu nut was a bit of a pain but I eventually managed to make a socket out of my tool box bits that just about gripped it and after much slippage I loosened it.
Unclipping the ecu connectors was a bit of a puzzle initially until I realised you needed to push down on the plastic clip to release them, I then used a flat screwdriver blade to coax them out.
I then took the ECU indoors and tried to remove the 6 screws - 5 were happy to come out one was stuck fast - I eventually got it far enough out where I could finish the job with a pair of plyers . It didnt go back in as the thread had chewed on it, and the head rounded.
The chip change was very easy, I spent a good 5 mins lining up all the pins the very gently pushed the top of the chip which popped into the board, I then made sure it was firmly in place. I then snipped J1 and put it back together and back in the car. I didnt screw it back in but instead reconnected the battery and crossed my fingers. Car started straight away and I left it to idle for 10 mins.

ECU LEARNING TIME
So far so good, stopped the engine and refitted ecu properly. Started up again and drove for 5 miles very carefully. Immediatley noticed two things - the throttle has become more sensitive requiring the smallest of pressures to rev. The car is now totally smooth when running/accelerating feels like a different car. Left car for 30mins before driving a further 15 miles. About 5 miles into the journey back I decided the ECU has had enough learning time and brought the boost in in 4th then allowed it to max boost for a short period
0.8 bar. Hmm - waited a min or so and tried again 0.9 bar.. ah I know what its doing it's still learning.. again 1.0bar.. again 1.1bar again just over 1.1bar which it now peaks at everytime.

Great stuff

On Saturday I get to see what the rolling road thinks

If you can get your hands on one of these chips its well worth it

Scott.T

iTrader: (2)

Glad you like....
Can you just confirm to me, by private mail if you like.... who you bought it off (real name not BBS name), what was written on the chip label...who you are and what ECU it is now in.

I have a list of all I have supplied and would like to ammend the details as such.....

cheers.....

P.S I take it the ECU was socketed then ??

calgonis

I cant get your email address from your profile Scott - could you give me your email address please, or send an email to my address in my profile.

Thanks

Andrew

taffy sparky

FAO. SCOTT and ANDREW
I have a "U8" ecu in an MY93 wrx can any of these chips you talk about fit into this ecu? My turbo has been replaced with one from a 97RA any help would be appreciated.

Thanks
Christian..llanelli, s.wales

Scott.T

iTrader: (2)

A U8 can be done, but it is a very early ECU that has some of it's parameters in a different place compared to UK and later WRX maps. So if you get one be sure that it's the right one for the job.

I assume that the 97RA Turbo may be slightly smaller then the standard TD05 (on a saloon), so the boost and boost control map would need to be similar to that of a WRX Wagon. In it's current state the smaller turbo will spool alot quicker and could give possible fuel-cut issues.

This may help identify the turbo http://www.sqc-ny.com/tech/turbos.pdf

Pavlo

Scott,

It doesn't matter where the maps are on the stock ECU. I have run 3 different types of software (legacy, early impreza, later impreza) on my ECU, all without issue. Provided the control software matches the data portion there isn't a problem.

The only issue I have seen is when haveing a different base software on the ECU to the scoobyECU and then swapping between the 2 without an ECU reset. It would appear that the data stored in RAM (ignition correction etc) is different accross different code bases, and switching causes some odd things to happen.

However I have still to get to the bottom of a problem which prevents a normal scoobyecu map running on an ECU I have here, when the Jap chip that came on it runs fine.

Paul

Scott.T

iTrader: (2)

Paul,

What I was trying to explain was that the U8 and W6 have their knock correction in a different place compared to all the other base maps that I have seen.

If you plug in a ScoobyECU not using a U8 or W6 base map then there will be a high risk of knock and that the knock correction will not work.

Ensuring that the correct base map is used sorts this out, and has been witnessed with a Knocklink.

Scott.T

iTrader: (2)

John (& Paul maybe interested)

I justed managed to find another programmer at work, and tried to read out your Zero Sports chip.

It turns out that the Zero Sports Chip, isn't actually a 27C1028 but is in fact an emulation of a 27C1028.

I must take my hat of to these Jap guru's because when fitted in the ECU it does look like a chip, but infact it is a peice or perspex fitted with a 28-Pin DIL socket.

Encapsulated to the underside of the perspex are 2 surface mount devices. I assume that these are 2 8-bit devices which work in a similar fashion to the ScoobyECU.

As I do not know what these devices are (no markings) it is nigh impossible to read this data out.

All I can assume is that Zero Sport would blow them prior to mounting them or have a special rig setup to programme them in situ.

It's gotta be the smallest ECU adaptor I've seen....

Oh well it was worth a try.....

Looking closer I think the 2 devices I can see are a pair of Transparent D-Type latches and I think the main Chip is under the perpex which appears to be a layer of Perspex and a PCB bonded together. There is a small hole in one end, where I think the encapsulating glue has been poured...... Very neat.

The only way you will be able to read this map out will be connecting it to a dummy ECU and using the select monitor port. Come to think of it, David can do that.

jjm555

Scott,

many thanks for having a look at the chip anyway. When you say 'David' do you mean David Wallis? If so, can you help David?

TopBanana

97 RA's were fitted with VF22's to the best of my knowledge

scoobiestu

sorry to hijack thread but im trying to find symilar info out to no avail!!

i own a 1994 wrx wagon and would like to know if the scooby ecu would work on this? if so what are the potential benefits i.e power, fuel (98ron) etc..
also where the hell can i get one from and what should i be prepared to pay??

cheers in advance
stu

neilswrx

similar interest as i,ve a 1994 wrx import saloon not sure if this will help but last owner only used normal unleaded
me optimax with millers
would it help scoobyecu remap??? to keep engine in good condition?

Scott.T

iTrader: (2)

Yes I do mean David Wallis, but JGM (Jolly Green Monster) now works here, just on a different site. I am going to hook my select monitor download software up to his old ECU next week and use that to download the map.

We should have some answers by mid next week....

martin850

iTrader: (51)

Scott , I have got an MY95 WRX with a full HKS decat system,Up-rated panel filter and an MY02 TMIC conversion, would the scoobyecu work well with these and if so how much do you sell them for?

TopBanana

martin: very similar to my spec, and YES it will work very well

martin850

iTrader: (51)

Great what have you done to yours if you don't mind me asking?

TopBanana

It's got a full decat exhaust and a K & N induction kit. Std TMIC though

martin850

iTrader: (51)

As long as it will fit straight in I will defo get one. Thanks for your help jlanng.

taffy sparky

Thanks for the info the turbo does spin a lot quicker than the old one probably because the old one had split. anyway where on the turbo should the stamp or model number be as the site you showed has 3 possibilities VF22, VF23 or VF24. Hopefully the VF24 as this one sounds like the best all rounder.What do you mean by fuel cut problems? I reset the ecu by disconnecting the battery about 2 weeks ago and I have had no problems so far.The turbo kicks at around 2,500-3,000 rpm and I noticed tonight that it has like a second stage at around 5,000-5,500rpm and then it really goes, but I have to change gear damn quick then.

thanks again,

christian

martin850

iTrader: (51)

top

calgonis

Just got back from the Rolling Road at Engine Advantages and the car made
273.2 bhp and 250.9 lbft with the ScoobyECU chip fitted, however I got told the car is detting
Im having this looked at next week its thought to be unrelated to the chip change but more likely that this has just acentuated a problem the car is currently having i.e. (MAF probably).

Anyway will post up what the problem was after its been fixed.

Time to invest in a knocklink me thinks, as I had no clue anything was wrong at all and this would have ultimately ended in my engine going bang.

Cheers

Andrew

Pavlo

Scott,

If you plug a scoobyecu into a W6 or W8 ECU, it doesn't matter where the knock correction table is. The entire software gets replaced along with the maps. If you don't reset the ECU when switching between standard and modified maps, that will create problems. however, just fitting a z4 based map into a w6 ecu does work, and I know the knock correction works because I have logged it working.

Paul

Scott.T

iTrader: (2)

Fair enough, comment noted.....
The instances where I had seen/heard of strange goings on, the ECU may not of been reset. Thats all down to the owner....but I do know that supplying the owner with a Map with the Knock correction in it's original place seems to of sorted it.

Spoon

Ok, whilst the chip bods are floating about.

Tell me, if you take a B4 (1996 auto wagon) and add a chip supplied by someone on this bbs. (not Scott or David)

1.Why doesn't it reach the max boost level it's intended?

2.Why does it always whilst accelerating from low down in top (full loading) cause it to lose boost? ( back to 7psi max). Is that knock detection?

It will sometimes remain at "limp" mode for many miles or sometimes revert back to full power quite quickly without having to stop the car.

I've asked the guy who supplied it on numerous occassions but after the event he's suddenly gone very quiet.

Your views please.

Scott.T

iTrader: (2)

Common problem if a WRX Saloon map is fitted into a Wagon.

It will not hit max boost due to a different duty cycle being required i.e for a TD04 and not a TD05

It will go into limp home mode for no apparent reason.

Using the base map from a WRX Wagon ECU and suitably modified performance maps for the TD04 will sort it.

Pavlo

B4?

As in legacy B4 or B4 ECU?

As scott says really. My original Legacy map was really bad for going into limp mode, possibly because of noisey heads that triggered the knock sensor. Although it will also go into limp mode with many other types of error.

From the sounds of it a chip has been fitted into a car that it was never intended to go into.

Paul

Spoon

Thanks guys.

Scott- The map fitted was one of several tried in this particular wagon. (the guy fitting it went to the home).

As it was fairly recent it leads me to believe there are still "unknown" issues with these chips, otherwise it would have been corrected by now at no extra cost. As I said earlier, the "expert" has now disappeared it seems.
Also what could it be doing to the engine if other parameters are incorrect?



Pavlo- B4 as in B4 . I wondered about noise originally as it has a de-cat plus a rather large bore and under full load (accelerating in top from lowish revs) it produces quite a boom but not really a rasp like it would be high up in the rev range so I kind of discounted that.

Other gears are fine too, it's only in top from low revs.

scoobiestu

sorry to hijack thread but im trying to find symilar info out to no avail!!

i own a 1994 wrx wagon and would like to know if the scooby ecu would work on this? if so what are the potential benefits i.e power, fuel (98ron) etc..
also where the hell can i get one from and what should i be prepared to pay??

cheers in advance
stu

Scott.T

iTrader: (2)

I know that I spent a good few hours sorting a WRX Wagon with similar symptons to the above.

It was running a Saloon map with the above problems.
I did get to the bottom by doing what I mentioed above. This car no hits and holds 15.5psi with good AFR and little or no KL activity.

I subsequently supplied another 3 or 4 identicle maps to other WRA Wagon and WRX Auto Wagon owners.

I think I also emailed David a copy of the map.

Sorry, but I can't comment on the abilities of other mappers or if they have come accross or even solved these issues.