Prodrive ECU logging
#1
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Prodrive ECU logging
Hi there,
I am looking at my Prodrive ECU and trying to confirm its authenticity. The casing looks correct with STi and Prodrive stickers.
The ECU apparently came from an RB5 Prodrive. I have a my99 UK wagon.
When I did some logging with ECU explorer the Prodrive is listed as a 'MY99/00 Impreza 2.0 Turbo/WRX/GT (EURO) [AE801]' - Is this right? Has anyone else with a Prodrive ECU connected up to ECUExplorer.
The boost pressure only occasionally gets over 1bar, and only then seems to be when I get back on the gas after some coasting and is more like 0.95 max most of the time.
I'm looking at some acceleration run data at the moment. Does anyone have any good spreadsheets to help analyse this a bit. It did feel a bit quicker by the butt dyno, but not night and day.
Any thoughts?
Thanks!!
I am looking at my Prodrive ECU and trying to confirm its authenticity. The casing looks correct with STi and Prodrive stickers.
The ECU apparently came from an RB5 Prodrive. I have a my99 UK wagon.
When I did some logging with ECU explorer the Prodrive is listed as a 'MY99/00 Impreza 2.0 Turbo/WRX/GT (EURO) [AE801]' - Is this right? Has anyone else with a Prodrive ECU connected up to ECUExplorer.
The boost pressure only occasionally gets over 1bar, and only then seems to be when I get back on the gas after some coasting and is more like 0.95 max most of the time.
I'm looking at some acceleration run data at the moment. Does anyone have any good spreadsheets to help analyse this a bit. It did feel a bit quicker by the butt dyno, but not night and day.
Any thoughts?
Thanks!!
#2
The identification when queried is as you see it in ecuExplorer, 99/00 WRX etc.
To look at the ecu will have a purple sticker with STI on it as you say, because Prodrive used a batch of donor STI ecus that they re-mapped for their cars. Assuming the ecu has not been re-mapped again since it was part of a Prodrive performance pack (which is possible) then it will be running 16psi of boost as opposed to the 13psi of the standard car.
To look at the ecu will have a purple sticker with STI on it as you say, because Prodrive used a batch of donor STI ecus that they re-mapped for their cars. Assuming the ecu has not been re-mapped again since it was part of a Prodrive performance pack (which is possible) then it will be running 16psi of boost as opposed to the 13psi of the standard car.
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Thanks for the confirmation on ECUExplorer's description. The outside of the box does look spot on. It is the boost that is worrying me.
I'll take some more logs tomorrow and see if the boost is a bit higher - It's the boost that is concerning me that is not a real ppp ecu.
By the way I have STi V5/6 intercooler with STi silicon bottom hose, Ninja Sports cat downpipe and Hayward Scott decat centre and backbox. I thought this should be close enough to the PPP spec!
Could the pill I've read a bit about affect this lack of extra boost?
Thanks again!
I'll take some more logs tomorrow and see if the boost is a bit higher - It's the boost that is concerning me that is not a real ppp ecu.
By the way I have STi V5/6 intercooler with STi silicon bottom hose, Ninja Sports cat downpipe and Hayward Scott decat centre and backbox. I thought this should be close enough to the PPP spec!
Could the pill I've read a bit about affect this lack of extra boost?
Thanks again!
#4
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I recently bought a MY2000 uk impreza with a prodrive ecu fitted,it definatley felt more responsive than my last 99uk model,however it did not boost to 1.1 bar.After checking all the pipework,etc found that the wastegate arm had seized,i slackened it off then turned it in a few turns and car boosted much more strongly.
#5
When I did some logging with ECU explorer the Prodrive is listed as a 'MY99/00 Impreza 2.0 Turbo/WRX/GT (EURO) [AE801]' - Is this right? Has anyone else with a Prodrive ECU connected up to ECUExplorer.
The boost pressure only occasionally gets over 1bar, and only then seems to be when I get back on the gas after some coasting and is more like 0.95 max most of the time.
It did feel a bit quicker by the butt dyno, but not night and day.
Any thoughts?
Start ECUExplorer's ECUQuery function and enter 2105061 in the Start Address box, and 2105076 as the Stop Address, then hit Query. It'll give you a file save dialog box - just give the file a random name. Then watch the numbers in the upper part of the main window. You should see something like this:
201EE5 - B6 B6 B6 B6 B6 B6 B6 B6 B0 B0 B0 B0 B0 B0 B0 B0
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That is awesome info Splitpin - thank you!
My ECUQuery:
201EE5 - BA BA BA BA BA BA BA BA B3 B3 B3 B3 B3 B3 B3 B3
So not as high as your guess, but different from an AE801 nonetheless. So fair amount of confidence it is a PPP - If anyone else has a PPP and fancies plugging it into ECUexplorer that would be superb to be able to compare for sure.
My old ECU was an AE800 - and driving it today it did feel quicker still (but spending £200 can do funny things to butt dynos!). Last night was flat out straights at higher revs, but the difference when driving today was most noticeable at far lower revs. I did a few more 4th gear power runs today to see how they compare to my old ones with a bit more certainty - but haven't studied the numbers yet.
Boost is maxing out at 0.95 at 5200 rpm with a steady 80.78 wastegate duty. So I'm still not completely happy about that. I might have a fiddle with the wastegate and the vacuum pipes at the weekend.
Thanks again
My ECUQuery:
201EE5 - BA BA BA BA BA BA BA BA B3 B3 B3 B3 B3 B3 B3 B3
So not as high as your guess, but different from an AE801 nonetheless. So fair amount of confidence it is a PPP - If anyone else has a PPP and fancies plugging it into ECUexplorer that would be superb to be able to compare for sure.
My old ECU was an AE800 - and driving it today it did feel quicker still (but spending £200 can do funny things to butt dynos!). Last night was flat out straights at higher revs, but the difference when driving today was most noticeable at far lower revs. I did a few more 4th gear power runs today to see how they compare to my old ones with a bit more certainty - but haven't studied the numbers yet.
Boost is maxing out at 0.95 at 5200 rpm with a steady 80.78 wastegate duty. So I'm still not completely happy about that. I might have a fiddle with the wastegate and the vacuum pipes at the weekend.
Thanks again
#7
Alrighty. 0xBA = a boost target of 0.98 bar, considerably lower than practical experience suggests the PPP ECU runs, but if that's what it is, that's what it is. The one thing you can be certain of given what you've seen is that you don't have a bog standard AE801 ECU either, and, as such, as you say you can be reasonably confident that it is what it says on the tin.
Given that this is the target, in practice there's little point you spending too much time playing with the wastegate and pipes. In practice you will usually find peak boost runs a fraction below the target, so given that we know the target is 0.98, everything as far as we can see is running correctly, albeit not delivering as much boost as you'd like.
Given that this is the target, in practice there's little point you spending too much time playing with the wastegate and pipes. In practice you will usually find peak boost runs a fraction below the target, so given that we know the target is 0.98, everything as far as we can see is running correctly, albeit not delivering as much boost as you'd like.
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Having a closer look at my private test track runs 60-100mph 4th gear runs 3250-5450rpm
old AE800 Average 11.4 seconds (4 runs)
new PPP? AE801 Average 10.1 (5 runs)
Actually that is looking a pretty good improvement and I can be pretty sure that I have got the genuine thing. Do note stats fans that it would be faster to do some 3rd gear 60-100s, but I also took a couple of 120 runs too (but kept running out of space!) - but no difference between the two (another 7.1 seconds) - I guess the TD04 is running out of puff a bit by then.
Still a bit puzzled by the 0.98bar target boost - even if that is what is says on the map
Thanks again Splitpin
old AE800 Average 11.4 seconds (4 runs)
new PPP? AE801 Average 10.1 (5 runs)
Actually that is looking a pretty good improvement and I can be pretty sure that I have got the genuine thing. Do note stats fans that it would be faster to do some 3rd gear 60-100s, but I also took a couple of 120 runs too (but kept running out of space!) - but no difference between the two (another 7.1 seconds) - I guess the TD04 is running out of puff a bit by then.
Still a bit puzzled by the 0.98bar target boost - even if that is what is says on the map
Thanks again Splitpin
#9
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Dont know if this is any help to you mate,i know figures can vary between individual cars ,but this might give you a bit more info.
http://www.prodrive.com/up/99MY%20Impreza%20PPP.pdf
http://www.prodrive.com/up/99MY%20Impreza%20PPP.pdf
Last edited by midnight; 13 May 2010 at 12:27 AM.
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Hi, I'd spotted that pdf, but I'm not convinced I can be accurate to within 0.2 seconds like a lot of those difference are! Also most of those readings on the pdf are really quite low rpm ranges which is a bit odd (I guess they are 'real world' driving). But reassuringly the difference in 4th gear 60-80mph is only 0.1s (way less than my 60-100 differences in 4th) - so I may try and see if many of my logs start even slower than 60 (some definitely do)
Will be interesting to see how my car stacks up to theirs. I don't have any decent program to help me figure out the timings - so it is carefully working out spreadsheets that is needed - and can only be done in small doses, but will be good to see!!
I am tempted to fiddle with the waste gate after your earlier post I'm not sure if the ECU sets the wastegate duty as to what should happen or whether it looks at the boooost and sets the wastegate accordingly?
Also Midnight, how did you measure your boost you mentioned in your earlier post?
Will be interesting to see how my car stacks up to theirs. I don't have any decent program to help me figure out the timings - so it is carefully working out spreadsheets that is needed - and can only be done in small doses, but will be good to see!!
I am tempted to fiddle with the waste gate after your earlier post I'm not sure if the ECU sets the wastegate duty as to what should happen or whether it looks at the boooost and sets the wastegate accordingly?
Also Midnight, how did you measure your boost you mentioned in your earlier post?
#11
I am tempted to fiddle with the waste gate after your earlier post
A held boost of 0.95bar or so is consistent with a programmed target of 0.98 in current air temperatures and on an ECU without any temp compensation - a feature UK classics lack. You will find you'll get slightly more if you drive it on a very cold day, and slightly less on a warmer one.
You won't make it go significantly higher by altering the actuator arm - the only thing you eventually will cause by doing this is transient spiking/fluctuation by throwing the boost error correction system out of calibration.
I'm not sure if the ECU sets the wastegate duty as to what should happen or whether it looks at the boooost and sets the wastegate accordingly?
If you want significantly more boost out of your car as things stand you'll either have to use an external controller or have it remapped. I wouldn't recommend the former as the PPP tune isn't overly known to be tolerant to further modifications while maintaining a safety margin. As C. Maguire suggested earlier, you may have an ECU in a PPP case that actually has a non-PPP firmware on it. Sounds a bit counter-logical for a custom map to have such a low boost target on it, but stranger things have happened. Buying secondhand there's always a risk that things might not be as claimed.
Is the part number on the top of the ECU can A18-000-D1X, by the way?
Last edited by Splitpin; 13 May 2010 at 02:31 AM.
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Thanks again Splitpin for an amazing reply. I won't be fiddling with the wastegate at the weekend
The numbers on the STi sticker on the ECU are 1001056110 A18-000-D1X (which I'd read a couple of time should be genuine)
The numbers on the STi sticker on the ECU are 1001056110 A18-000-D1X (which I'd read a couple of time should be genuine)
#13
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BA BA BA BA BA BA BA BA B3 B3 B3 B3 B3 B3 B3 B3
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