babber

All,

Just wanted to give a little feedback following the ECU change to my MY00. As most will be aware the car was hesitating, had flat spots, was poor on fuel, etc, and was generally not very nice to drive

Changed the ECU nearly two weeks ago for a MY99 ECU from an RB5 (cheers chins) and since then the car has been fantastic AGAIN No difference between standard MY99 ECU and RB5 one!!

I know Floyd was going to try the same exercise to see if it fixed his problems!!! Any news??

I've spoke to a couple of "experts" and they think that Subaru maybe tried to be clever with the MY00 map, looking for better emissions ?? "If it isn't broke don't fix it" springs to mind

Well anyway, I pulled out of work last night (roads were slippery) and floored it. Managed to get all four wheels spinning I am so pleased that we have managed to get to the bottom of the problem, and fix it.

Thanks to everyone who has helped me to get the issue resolved. The power of Scoobynet Well done

Cheers Phill C

Chris.Palmer

Back to PE ASAP I say & get some proper figures!

Glad to hear you got it fixed.

Cheers,

Chris

john banks

Boost controller and downpipe (again). Sort out those fleet boys please!

ccpaton

my01 wrx seems to have similar problems too yours but does not do it all the time.every time i take it back to dealer it seems to behave itself.do you think its the ecu,could i not just get a new one under warranty or is it worth replacing it with one from a 99 car?dont want to stuff up my warranty

WREXY

Ccpaton,

Welcome aboard.

You can't fit a MY99 ECU to a MY01 because the ECUs are different altogether on the MY01s. They don't match like they do on the MY99 and the MY00.

Cheers,

Wrexy.

Gizmo555

Glad to see you've got it sorted.

ccpaton

CHEERS FOR THE WELCOME WREXY,GOT ANY SUGGESTIONS WHERE MY PROBLEM LIES?ITS REALLY SPOILING THE ENJOYMENT OF MY NEW TOY.

babber

Double post.

[Edited by babber - 12/15/2001 6:16:46 PM]

babber

ccpaton,

I didn't think the MY01 had a ECU problem, as such. I thought it was a much more refined ECU.

Have you tried leaving the car with the dealers for a few days ? My dealer had mine for nearly a week, before it happened while they were driving it.

Have you asked the dealers to try a new ECU ? And no you won't have to pay for a new one if it is knackered!!!

Cheers Phill C

ccpaton

babber no not left it with them for more than a day yet,think there trying to say its in my head,i wish.no def not just a mild ECU this thing drives like a dog sometimes,dont know if it is the ECU just looking for suggestions.its not good being in a mid bend slide when you give it a bootfull and all you get back is cough cough splutter splutter,need to get it sorted before i end up on a ditch excurtion.

Floyd

iTrader: (9)

Babber

Not got my ECU yet as I was going to pick it up today but couldn't make it. It is being sent to me instead so I'll probably get it after Xmas now, oh well....

I'm glad it's still OK, every time I see your post titles it looks like your still having troubles but the post says otherwise, thankgod!

I really believe that emissions and economy tweeks have hurt the driveability, which can be exagerated on certain cars due to differing tolerences etc.

I'll let you know when I get it fitted, BTW how much did the dealer charge for key programming your unit?

F

babber

Floyd,

Tileys of Bristol done it FOC, as they were as keen to find the solution as I was

Only takes about five minutes at the most, so I would have thought not much. They should do it FOC really, as you have to buy the ECU. How much did you pay?

Cheers Phill C

PS Still flying

bob

Hi babber
Glad to hear you got it sorted.
What I could not understand was the Link got rid of the hesitation, so this pointed to ECU or AFM. Your MY99 ECU confirms that it is the ECU at fault. Some PPP customers were saying there car still hesitated with the PPP So what ECU are Prodrive using for the PPP.
My P1 would hesitate every morning until the car warmed up but that was no worry its when they hesitate when hot that pissed me off.

T-uk

I too have often wondered where Prodrive get their ECU's.a large tuner I spoke to,has started to think that they are standard ECU's with 2psi more boost.

john banks

They are STi ECUs with a Pink badge on the top made by JECS and hopefully reprogrammed by Prodrive. The same tuner (I know who you mean bless 'em) told me they had just done something to my old ECU and if I looked inside I would find an FCD with my old ECU. When I told him the off boost characteristics were different along with the boost curve coming in earlier with no sign of any bleed valves and an intact fuel cut out as well as a full ECU being in my loft he accepted it may be a remap! Some also say it is more willing to advance the timing than the original ECU. It certainly drives better off boost than the OEM ECU even with the same exhaust so it can't just be boost changes.

I am sure they wanted you to buy a superchip. If you look around the web for DIY FCD you can build your own with minimum of a potentiometer (19p) for a very crude one or a few op amps and gates for a "sophisticated" one (<£10). Then you could buy a £10 bleed valve. Cost you <1/10th of a Superchip. I have seen the dealer installation instructions for Superchips and this is all it is - FCD voltage clamp and bleed. In fact one of the web circuits is better as it just moves the fuel cut higher but does not disable it. The following is not the link as I can't find it!
http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm
And I wouldn't put anything like that on my car unless it was of this latter variety.

[Edited by john banks - 12/16/2001 10:51:33 AM]

babber

Bob,

Yes, I'm so pleased that it seems resolved.., But will IM admit a problem with the code on the ECU, not likely. Bit like TW saying that the Pace set top box code is fine, that's why we have a code download every other week!!! Shame you don't have that option with the crappy ECUs.

John Banks is happy with his PPP ECU, but has loads of other mods done now. Hopefully he'll sell the PPP ECU when he goes for a link to me

The PPP ECU is definately different to the standard model, with out a doubt.

I know about the chips, as a mate of mine used to do playstations, etc. I'm sure you could get a chip and copy a PPP mapping if we do then we'll chip the MY00 ECU to prove a point

Anyway, I'm seriously thinking about buying the new STi UK-type, now the cars sorted and the fleet managers has offered to dispose of the MY00

Cheers Phill C

PS We were flying this morning much to the surprise of a c-reg Ferrari 328 in blue BYE Egged on by the three daughters

T-uk

John,

how did you know they were trying to sell me a superchip ,just wondered if they were right as Andy Tang got very similar results with his standard ECU and HKS EBC (with 1.15bar I think) to his Prodrive ECU at 1.2bar(I think).

the impression I got from the tuner,was that the fueling when checked between a PPP'd and Superchipped car @17psi was the same.for piece of mind I'd rather go Prodrive though.

john banks

I believe the PPP has a higher cutout which helps with fitting the boost controller, but other than that probably little advantage except the better performance off boost. For some reason I seem to be getting better boost figures and performance out of the Dawes than some others? I do believe the standard ECU fuels perfectly adequately for running 17PSI or more. The Superchip will not boost as quickly or as early as a boost controller car though and will IMHO be much less safe without fuel cut. My issue with Superchip is no cutout and the high price for what it is not fuelling.

Floyd

iTrader: (9)

Phil

1st question = P+P.

I wonder if the PPP has the same emission programming on part of the map but more boost and advance at bigger TPS for the PPP side of things? This may explain why Tony Burns has some surging problems with his MY00 PPP car. Perhaps if he could get hold of a MY99PPP it would be different......

F

TonyBurns

iTrader: (3)

It was a bit strange what my car did but she hasnt done it since and id filled up from a different petrol station, there was also a uk300 with ppp fitted that suffered the same and had also filled up from a different petrol station, points in the direction of the fuel me thinks

Tony

T-uk

babber,

just wondering if the car is still going well?

had a drive in a MY98 S reg today,totally standard and it pulled so much better than my MY00 even with the decat .

babber

T-uk,

Yes she does!!!!

Still really impressed, infact I cleaned her today, second time in a year

Cheers Phill C

T-uk

must be going well for you to clean it,lost interest in keeping mine clean ages ago.

john banks

T-UK you must come and have a ride. I am really pleased with the boost curve now and it is as creamy smooth on the throttle as OEM. You will believe in MY00s again when you have I promise!

T-uk

thanks john,

I am in no doubt that a PPP would sort out my car but honestly do not see why I should have too,to get similar performance to earlier cars.it is known that the PPP on MY98's gave very little and that they give noticeable gains on a MY00.

I really wish you would take your car to Knockhill as a track is the best place to guage a cars performance and I do not mean round the bends but up the straight.the SIDC days are excellent with instructors included in the price who will go out and help you go round safely,if you went out for one session you would see why they are so good.please do not think that I want to race you,that is not what these days are for,you drive at your own limit it is just that up the straight I think every driver will be foot to the floor .r/r figures to me are a guide,1/4 mile drags can go to who is most brutal and lap times to who has the biggest *****, but unless you miss a gear a straight to me is the most accurate guage.a motorway or dual carrige way could do but the speed at which these cars get to 100 means taking a gamble and then it can end up who is willing to keep the foot down the longest.

T-uk

meant to add that for the money I think I would go Link as after chasing Sam Elassar's car in all modded forms and the fact that his car has been round every track in britain about 40 track days in total on same engine proves it is more than up to the job,although should a 2nd hand PPP ECU come up when you get bored of playing with bleed valves and want to start with fuel and timing I would happily buy it

[Edited by T-uk - 12/24/2001 12:52:41 AM]

john banks

Hear what you are saying T-UK, but the Scooby is not going near the track. There are too many offs and insurance problems to put me off as well as people driving incredibly close to each other at pretty high speeds. I'm not hugely convinced that a massive amount of the way my car runs is now down to the PPP ECU, but I need to see how Beastie's non-PPP RB5 goes to compare.

There is still an invite open to you if you want a ride. The difference before-after is not at all subtle.

T-uk

no probs john,

there are off's but I would rather fall off a track than a road,everyone to their own I guess.I used to be the same as you but my first day was a real eye opener,it is so much safer than people think and if something does go wrong at least there are no buses,walls etc and people there who know what to do.I admit insurance is a worry but do not see why insurance companies should pay out if you are driving flat out on road or track affecting other peoples premiums,unless you have payed for extra track day cover.I looked into track day cover but the excess put me off,really the car would have to be oblitarited for it to be worth while and if it was that bad I would be more worried about myself than it.

if you go to Star I will try and make it too,for a chat and if you have time a run,I'm sure thet your power at wheels will be far higher with the PPP ECU,mine is always 139 and would guess yours to hit 160to170.


edit,bloody brain not working to day
[Edited by T-uk - 12/24/2001 11:45:31 AM]

[Edited by T-uk - 12/24/2001 11:51:59 AM]

john banks

Is there a link you can give me for some Star dyno charts so I can do my homework ?

The other thing is a PPP with the old Falkland downpipe got 182bhp at the wheels at PE. Would hope for better than that ON THE SAME ROLLERS given I am running more boost but otherwise similar, but I'll need to compare with other cars on the same dyno. Sounds like Star's RR reads a lot lower than PE? On the road the boost controller seems to make as much difference as the PPP did again, but that might be a trick of the way it drives with excellent spool up and lots more low down. And as we have said before more boost at the top end doesn't necessarily mean more power.

[Edited by john banks - 12/24/2001 11:53:37 AM]

T-uk

scottish forum,go back 30 days for the last results on www.scoobymods.co.uk