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Discussion Starter · #1 ·
I remember reading somewhere that if you unplug the ECU for 10 mins, reconnect, then drive it hard for 50 odd miles, that the computer will remap itself to these parameters?
Have I had an extremely odd dream, (talking s#$t) :( or is there any truth in this? :D
 
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Discussion Starter · #3 ·
Heard the same meself, about 15mins will clear the ECU. However, the ECU seems to be adaptive so if you drive like that anyway it will learn your style. Read a story on one of the AO forums that the scooby boys run around with some lardy mates in the back for a bit before a track day to get a bit more oomph!!!

Beware of alarm problems if you disconnect the ECU!!!

wrinx
 
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Discussion Starter · #4 ·
The workshop manager at Alfissimo SA (my main dealer) told me to do the same, so it must still work, I guess?
 

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According to Ford manuals, resetting the ECU this way clears the 'knowledge' of the engine. ie where it misfires, needs ignition advance etc, so expect it to run rough for a bit. I don't think it has a neural net processor, we will have to wait for the squadra T-1000 for that. wink
 
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Discussion Starter · #6 ·
Yeah, my local Alfa/Bosch specialist told me the same thing while my ECU was getting replaced (long story...). He said it was a common thing to do to powerful cars (like M3's) because the difference after a 10/20min burn make it feel like a new car to customers (cars like those are rarely pushed to their limit on a regular basis on the road) as the car adapts to the hard driving style. The adaptive part of the ECU changes parameters acording to the load its put under (hence lardie mates in the back of a scoobie going uphill with bags of cement in the boot, etc). Unfortunately if you then drive like miss daisy for a number of miles the ECU then adapts to this style and become more sluggish (I don't know how long this takes). This technology allows the car to adapt to changes in the engine as it ages and parts are replaced and how it is running via input from its various sensors. Mine has been reset a couple of times (bloody flat battery) and it does drive rough for a while (maybe 10mins) till it adapts to the data its getting from all its sensors, for tuning, mixture, lamda, driving load/style, etc. If the cars starting to feel like a Lada Riva, then it may be worth a go, but remember the risks - ECU's don't like electrical surges (yeah, possibly part of that long story) & never jump start your car from someone elses with jump leads - always disconnect your battery (careful with those terminals) and then charge the battery from your mates car, then re-connect and start. As Wrinx says - the adaptive part is learning all the time, so a good thrashing might make a difference, but the 'reset' will flush the adaptive part of the system for you. Its all a 'learning' experience. Hahaha. I'm so bl**dy funny. Like a hole in the head...
 
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Discussion Starter · #7 ·
Hi, I'm unsure if this question has been posed before but its getting me and a couple of me mates rather edgy.
Is there an expiry date for the 155 ECU?? :confused:
After a diagnostic test on me pal's ECU, the reading said quote: "Balance of 345 days left"??
Could someone be so kind as to put our palpitating hearts at rest and please explain WTF that means? Cheers in advance.
 
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Discussion Starter · #8 ·
Run! it's a bomb! :)

(sorry, I have no idea what balance left means.. other than in lloyds!)

A
 
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Discussion Starter · #9 ·
i would think this has something to do with the ecu tester you used,does it have time sensitive software.???????
 

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Just before I have the problem with the poor fuel ecomony, I disconnected the battery to do a bit of welding on the car. Drove the the hell out of it to work the following morning, only got 230mls out of the tank. Started to think the Lambda was at fault, done all the tests, with the multimeter, and finally tested the temp sensor resistance - fine, but to make sure, while the car was running I pulled off the temp sensor to see if there was a difference. Revs soared and returned.
The point is, ever since, on the first full load of fuel I took it easy to see if fuel ecomony would come back up. I am now getting 380mls to a tank, driving the way I always did, originally only got the standard 330mls a tank.

Something Reset?????? - I am happy - less money - Amen!!
 
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