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 Posted: Mon Nov 26, 2012 2:59 pm |
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Joined: Feb 24, 2010
Posts: 2596
Trade Rating: +17
Location: North West Wales
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| Addaz wrote: |
Try to understand why on the twin turbo 2.2 diesel models full throttle for more than 24 hours in total (1 minute here and there) will whack the ECU into limp/half power mode to 'conserve' the engine
New one please  |
Care to give the explanation? 
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Posted: Mon Nov 26, 2012 3:00 pm |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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| Addaz wrote: |
Try to understand why on the twin turbo 2.2 diesel models full throttle for more than 24 hours in total (1 minute here and there) will whack the ECU into limp/half power mode to 'conserve' the engine
New one please |
TBF it would be pretty hard to hit full throttle for 24 hours. Even on a motorway, you won't have your foot down to the carpet unless you're doing well over the speed limit. I can't even think of the last time I hit full throttle in my 1.4 and that's fairly gutless in comparison.
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Posted: Mon Nov 26, 2012 3:03 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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He means 24 hours total not continiously.
But yes, I've never had to FOT any car not even for testing.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Mon Nov 26, 2012 3:15 pm |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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| V9977 wrote: |
He means 24 hours total not continiously.
But yes, I've never had to FOT any car not even for testing. |
I know that 
When you think if you accelerate hard from traffic lights, you're only at full throttle for a second until you change gear. And if you do hit 24 hours at full throttle, I think it's probably a good thing the the engine protects itself.
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Posted: Mon Nov 26, 2012 3:43 pm |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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| macca1411 wrote: |
| V9977 wrote: |
He means 24 hours total not continiously.
But yes, I've never had to FOT any car not even for testing. |
I know that
When you think if you accelerate hard from traffic lights, you're only at full throttle for a second until you change gear. And if you do hit 24 hours at full throttle, I think it's probably a good thing the the engine protects itself. |
Dont think about now, but think the seconds soon add up in the miles you do. Good idea, bad way of going about it with the ECU
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
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144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
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For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Mon Nov 26, 2012 5:08 pm |
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Joined: Jan 23, 2011
Posts: 42
Trade Rating: 0
Location: Earth
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| Steve206 wrote: |
I think a running fault will clear itself when sorted, but a faulty sensor will flag up an error which needs clearing in the ECU. If PP wont clear the fault, then your ELM certainly wont.
I cant really understand why there is a limit TBH. |
memory issue I guess...
still, it's a pity not being able to know how many resets have been done...
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Posted: Mon Nov 26, 2012 5:37 pm |
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Joined: Apr 19, 2012
Posts: 529
Trade Rating: 0
Location: darlington
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it all sounds like its programmed to cause problems for the tuning fans amongst us or the boy racers at least.......tuning fans would know how to get round this where boy racers ...well////wouldnt but it still sucks,afterall once you pay your cash the cars yours to do with as you wish...its actualy getting to the point these days where even if you paid cash its more like leasing the damned things..as if youve just borrowed the car for a few years...all these special tools and gadgets only go to reinforce the fact...its your hard earned cash so you should have total free reign to do exactly as you choose but the b*****d* dont like that these days...give em an overall and they think there hitler..sad.
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Posted: Mon Nov 26, 2012 6:10 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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These ECU's use EEPROM chips which have a limited number of guaranteed read/write cycles.
For safety and reliability as well as legal reasons they decided to allow 50 write opperations.
Later systems might use more up to date components but still limmit the opperations allowed
and some actually lock-up after the max number allowed.
For pugs, it's easy to check how many are logged-on by going to 'History' in PP2000 and seeing how many entries
are stored.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Tue Nov 27, 2012 6:51 am |
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Joined: Jan 23, 2011
Posts: 42
Trade Rating: 0
Location: Earth
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| V9977 wrote: |
These ECU's use EEPROM chips which have a limited number of guaranteed read/write cycles.
For safety and reliability as well as legal reasons they decided to allow 50 write opperations.
Later systems might use more up to date components but still limmit the opperations allowed
and some actually lock-up after the max number allowed.
For pugs, it's easy to check how many are logged-on by going to 'History' in PP2000 and seeing how many entries
are stored. |
Thanks 
You can see history even if the codes have been cleared using Elm327 ?
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Posted: Tue Nov 27, 2012 7:09 am |
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Joined: Feb 07, 2010
Posts: 2718
Trade Rating: +6
Location: UK
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Yeah, they just show as blanks with no dates.
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Posted: Tue Nov 27, 2012 12:00 pm |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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Have a bit of info on this
Its a bit of b******s tbh, the 50 is right for PP2000 in some aspects. For when you clear a fault code(s), or 'session' in other terms, it is stored on the PC for others to view (eg warrenty department) and for when the 50 boundry is full it just wont record the sessions anymore in the ECU, i dont know if they can be cleared, but frankly i dont ideally care
But even if the 50 is reached you can still continue to clear fault codes time and time again, there is no limit.
Side note, did you know after fourty driving sessions (car temperature rises above 22C) the fault codes will try to clear themselves.
As you do
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
Click to see more
144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
Click to see more
For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Tue Nov 27, 2012 1:13 pm |
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Joined: Feb 21, 2012
Posts: 2277
Trade Rating: +16
Location: west midlands
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| Addaz wrote: |
Have a bit of info on this
Its a bit of b******s tbh, the 50 is right for PP2000 in some aspects. For when you clear a fault code(s), or 'session' in other terms, it is stored on the PC for others to view (eg warrenty department) and for when the 50 boundry is full it just wont record the sessions anymore in the ECU, i dont know if they can be cleared, but frankly i dont ideally care
But even if the 50 is reached you can still continue to clear fault codes time and time again, there is no limit.
Side note, did you know after fourty driving sessions (car temperature rises above 22C) the fault codes will try to clear themselves.
As you do |
some good info there
seemed abit stupid. with all the problems most 206s get the 50 limit would surely have been reached within no time at all
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Posted: Tue Nov 27, 2012 1:18 pm |
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Joined: Feb 07, 2010
Posts: 2718
Trade Rating: +6
Location: UK
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| Addaz wrote: |
Have a bit of info on this
Its a bit of b******s tbh, the 50 is right for PP2000 in some aspects. For when you clear a fault code(s), or 'session' in other terms, it is stored on the PC for others to view (eg warrenty department) and for when the 50 boundry is full it just wont record the sessions anymore in the ECU, i dont know if they can be cleared, but frankly i dont ideally care
But even if the 50 is reached you can still continue to clear fault codes time and time again, there is no limit.
Side note, did you know after fourty driving sessions (car temperature rises above 22C) the fault codes will try to clear themselves.
As you do |
Will it let you clear the MIL though? I have found that with some faults they clear themselves after 3-4 runs.
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Posted: Tue Nov 27, 2012 1:32 pm |
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Joined: Nov 27, 2010
Posts: 11519
Trade Rating: +10
Location: What's it to you? ? ?
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In the 7 years I've had my 206 the diagnostic warning lamp has come on once & that was when the exhaust had a leak.
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Tue Nov 27, 2012 1:34 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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| Addaz wrote: |
Have a bit of info on this
Its a bit of b******s tbh, the 50 is right for PP2000 in some aspects. For when you clear a fault code(s), or 'session' in other terms, it is stored on the PC for others to view (eg warrenty department) and for when the 50 boundry is full it just wont record the sessions anymore in the ECU, i dont know if they can be cleared, but frankly i dont ideally care
But even if the 50 is reached you can still continue to clear fault codes time and time again, there is no limit.
Side note, did you know after fourty driving sessions (car temperature rises above 22C) the fault codes will try to clear themselves.
As you do |
Wait.
Sessions is different entirely and IS stored on the PC and company account.
History is stored in the ECU itself and I have indeed come accross Peugeot and Citroen ECU that will NOT allow wiping of codes due to it being full. You just get "History is full" message and that's it.
I believe it's to do with the fact that EEPROMs will only work reliably for a given number of write opperations before they risk being corrupt during the process.
Also, what about reseting the auto-adaptation?
Just disconnect battery or...?
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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