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| Re: Tomorrow I'll mostly be fitting a new ECU.... [message #215577 is a reply to message #215489] |
Sun, 20 June 2010 01:01   |
 Kermit 
Messages: 15042
Registered: June 2003
Location: Leeds |
(22) Giacomo Agostini |
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Nah, not motec although I've heard of them.
Its a DTA ECU which is a company that iirc used to be based on Bradford but moved over to Manchester a little while back.
http://www.dtafast.co.uk/
He used to have one of their older models but the replacement is one of the newer S models
Here's a link to some screenshots although I think most of these are from the DTAWin software while i think the newer model has newer software to play around with - fingers crossed it's easier to work out what to do than this although I suspect DTA have pre-programmed it with base settings for my brothers engine which is a k-series (1.7L iirc) engine making about 170bhp
http://www.dtafast.co.uk/screenshots.htm
[edit] just remembered I have a video of it in action at a trackday on Elvington Airfield a few years back. Uploading to youtube now 
Might as well run down what I can remember about it cos unlike myself who likes to spend a few quid (not too much  ) on nice bits for my bikes, his 2004 R1 is fairly standard baring gear and shift indicators. Conversly, his Caterham gets most of the attention with regards to carbon fibre parts and some other stuff. I forget most of what he's done to it as it was fairly well already sorted when he bought it about 5-6 years ago.
Its got a 1.7 K-series engine and an exhaust system that barely/doesn't quite pass 105db noise checks although the few track days he's done in it, they were quite slack on being exactly 105db or less 
Think it makes about 170bhp which doesn't sound much, but its certainly enough for me to spin it on my first go, at the first (coned) corner at Elvington when he handed driving it over to me for my first time  That said, I learnt a lot from that initial spin and treated the pedal with more caution afterwards as I'd never realyl driven a car before that could go out of shape at the rear end so quickly from just a small stab of the go faster pedal.
I consider myself quite good at cars in terms of happy to let the rear on my 'normal' car step out on roundabouts (when its quiet and have even won a few bottles of pomanage at eudurance karting 
Other than that, all I can remember other than it being a nice car, is its blue but like my old Passat and matched his other car which was an 2002 TT, but now is more practical 2009 TTS with those paddle shift things and i think around 240 or 270bhp 
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| Re: Tomorrow I'll mostly be fitting a new ECU.... [message #215851 is a reply to message #215489] |
Wed, 23 June 2010 11:14 |
Kermit
Messages: 15042
Registered: June 2003
Location: Leeds |
(22) Giacomo Agostini |
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ok, so some of you are reading 
I guess its just nice [as with all threads] that when someone takes a bit of time to make a post (especially with pics ) that there's a sign that its being read otherwise its a waste of time even if that is just a or  or even a 
/back on topic
Went down again on Monday evening and finished off a few things
a) fitted a new waterproof screw and locknut type grommet for the wires that go through the alloy bulkhead into the passneger side fusebox as the wires had been protected from rubbing on the alloy by little more than what seemed like some sort of bitumen substance 
b) Crimped and lightly soldered each of the approx 20 wires to pins then inserted (with great difficultly) into the ECU's new connector.
c) Most of the sensors or componants such as Crank VR, Water, Air, Lambada etc.. required a common sensor ground, some things needed 12v from fusebox (eg the solid state ingition/distrubter thing and injectors) or 5volt from the ECU so we spliced them together (and soldered) as there's on space on the ecu's pins to solder one wire in.
Anyway, to cut a long story short, connector done, hooked up, ignition on and immediatly we heard a good sign, the fuel pump primed which it wouldn't do with the old water damaged ECU.
Unfortunatly, after uploading my brothers original map to the ECU with a laptop the DTASWin software displayed the sensor readouts fine on the virtual dashboard screen (eg throttle potentiometer worked as did battery voltage and water temp) but it wouldn't start  For some reason it showed FAILED against the virtual Fuel pump gauge but we think thats a red herring we're not sure that the fuel pump has ever been wired into the display its status, only to draw power on command.
Its was getting on for 10pm at this point with light fading so we only got as far as pulling a couple of plugs and testing for sparks on both the Cylinder 1&4 and 2&3 but there were none. I suggested pulling two plugs from each of the two separate firing banks as 1&4 and 2&3 fire at the same time and each uses a separate wire/signal from the ECU so this eliminated one of the connector not making proper contact which would have been an easy fix but its not that and its not for lack of 12V to the distributer either so we're a bit stuck atm although suspect theres a reasonable explanation with probably the best bet calling DTA to seek advice on what to check.
Will keep you posted if/when we fix it and maybe if that comes soon, I might video it coughing and spluttering to life 
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