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Maximum 50 code-clears for ECU
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kernel

Posted: Mon Nov 26, 2012 7:58 am

Joined: Jan 23, 2011
Posts: 42
Trade Rating: 0
Location: Earth

Hi I've read in some places that when you get a code through diagnostics machine, you can only erase these codes 50 times. If you do more than this, ECU dies! Is that true? I also read it depends on the ECU, but not sure which ones are affected or not. Regards

VorTechS

Posted: Mon Nov 26, 2012 7:59 am

Joined: Feb 08, 2010
Posts: 2369
Trade Rating: +15
Location: Gloucestershire, UK

Apparently this is true, yes. (that you can't clear the codes after 50, sorry didn't read the ECU dies bit....)

Last edited by VorTechS on Mon Nov 26, 2012 8:52 am; edited 1 time in total

Seabook

Posted: Mon Nov 26, 2012 8:47 am

Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12

the ecu won't die.... it only means you will never be able to clear the code again


	Car Sold....

Rob2859

Posted: Mon Nov 26, 2012 10:21 am

Joined: Mar 29, 2010
Posts: 3977
Trade Rating: +15
Location: Halifax

It might be possible to de-solder the ROM memory chip and put another one on. Mine must be knocking on the door by now.

V9977

Posted: Mon Nov 26, 2012 12:40 pm

Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece

It won't die but if it get's into limp mode that's it because you can't wipe the code that flaged it.


	1.4i, 2001, 3-door, China Blue Repair safely - Drive safely

LeeThr

Posted: Mon Nov 26, 2012 12:44 pm

Joined: Feb 24, 2010
Posts: 2596
Trade Rating: +17
Location: North West Wales

Only thing that can be done is to reflash the ECU so the ROM is cleared.

gogs_macaulay wrote:

LeeThr wrote:

One Hundred million bazillion gatrillion pink rupee's

Shut it u stupid little f**k, what's the point in posting in all my treads being such a c***? Least I can afford a gti180, and to get the cam belt done!

So apparently everyone knows my financial situation? If I wanted a 180 I would have bought a 180 simples Smile

The garage
2003 - 206 GTi 138 - Moonstone Blue
2003 - 406 Coupé 2.2 HDi SE - Hyperion Blue
2000 - 206 2L HDi D-Turbo ECO - Cherry Red
1999 - 306 GTi-6 - Blue (haven't worked out if it's Nile or China yet)
1987 - 205 GTi 1.9 - Graphite Gray

I must be mad.....

DeeTurbo

Posted: Mon Nov 26, 2012 1:02 pm

Joined: Oct 17, 2012
Posts: 83
Trade Rating: 0
Location: Bedfordshire

Now, I know the ECU won't die but is the rest true, can you only clear codes fifty times?

I thought there is room for fifty stored parameters of occurred errors but surely you should still be able to clear a code as many times as you like?

The reason why I'm so interested in this is because my memory on my ECU has reached its maximum 50 and I get a "communication error" when trying to clear the fault I'm having with the MAF with PP. I first thought it just my cheap clone device playing up but after reading the above I'm worried that I won't be able to get my car sorted without getting another ECU or as said of replacing ROM. I need to give my old ELM327 ago to see if that clears the code and see what else happens with that.

I could really do with finding out about this.

DeeTurbo

Posted: Mon Nov 26, 2012 1:04 pm

Joined: Oct 17, 2012
Posts: 83
Trade Rating: 0
Location: Bedfordshire

LeeThr wrote:

Only thing that can be done is to reflash the ECU so the ROM is cleared.

Will that work?

kernel

Posted: Mon Nov 26, 2012 1:15 pm

Joined: Jan 23, 2011
Posts: 42
Trade Rating: 0
Location: Earth

Seabook wrote:

the ecu won't die....

it only means you will never be able to clear the code again

but do you know if this is for the same code or different codes? I mean for example if I cleared the same error 40 times and another one 10 times, it counts as 50 clear-codes or just 2 clear-codes? I fear it's the first thing... Confused

Rob2859 wrote:

It might be possible to de-solder the ROM memory chip and put another one on. Mine must be knocking on the door by now.

Some way to count how many clear-codes have been done?

V9977 wrote:

It won't die but if it get's into limp mode that's it because you can't wipe the code that flaged it.

PSA

Anyway I think the car can clear itself the code when some warm-ups cycles have been done. Could this avoid getting new ECU?

V9977

Posted: Mon Nov 26, 2012 1:26 pm

Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece

kernel wrote:

Seabook wrote:

the ecu won't die....

it only means you will never be able to clear the code again

Rob2859 wrote:

It might be possible to de-solder the ROM memory chip and put another one on. Mine must be knocking on the door by now.

Some way to count how many clear-codes have been done?

V9977 wrote:

It won't die but if it get's into limp mode that's it because you can't wipe the code that flaged it.

PSA

Anyway I think the car can clear itself the code when some warm-ups cycles have been done. Could this avoid getting new ECU?

'History' in PP2000 has 50 slots. Once it says 'the history is full' that's it. No more wipey-wipey.
Each slot is for one erase opperation wether you've erased 1 code or 12 in one go.

Better to get a different 2nd hand ECU/BSI+key rather than re-flash imo.

Don't know about self-clearing and limp mode if history is full.
You might be right with a bit of luck.


	1.4i, 2001, 3-door, China Blue Repair safely - Drive safely

kernel

Posted: Mon Nov 26, 2012 1:49 pm

Joined: Jan 23, 2011
Posts: 42
Trade Rating: 0
Location: Earth

V9977 wrote:

kernel wrote:

Seabook wrote:

the ecu won't die....

it only means you will never be able to clear the code again

Rob2859 wrote:

It might be possible to de-solder the ROM memory chip and put another one on. Mine must be knocking on the door by now.

Some way to count how many clear-codes have been done?

V9977 wrote:

It won't die but if it get's into limp mode that's it because you can't wipe the code that flaged it.

PSA

Anyway I think the car can clear itself the code when some warm-ups cycles have been done. Could this avoid getting new ECU?

thanks for that

so, what a sh*t. Do you know if this is for any 206 ECU (included gti180) ?

V9977

Posted: Mon Nov 26, 2012 2:01 pm

Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece

I think so. Might be wrong though. About self-clearing, I think it will depend on the code as some won't clear themselves. Still, 50 is quite a lot in practice.


	1.4i, 2001, 3-door, China Blue Repair safely - Drive safely

LeeThr

Posted: Mon Nov 26, 2012 2:10 pm

Joined: Feb 24, 2010
Posts: 2596
Trade Rating: +17
Location: North West Wales

V9977 wrote:

I think so.
Might be wrong though.

About self-clearing, I think it will depend on the code as some won't clear themselves.
Still, 50 is quite a lot in practice.

Wouldn't take that much with the idiots who just try to ignore these problems instead of getting them fixed.

gogs_macaulay wrote:

LeeThr wrote:

One Hundred million bazillion gatrillion pink rupee's

Shut it u stupid little f**k, what's the point in posting in all my treads being such a c***? Least I can afford a gti180, and to get the cam belt done!

So apparently everyone knows my financial situation? If I wanted a 180 I would have bought a 180 simples Smile

Steve206

Posted: Mon Nov 26, 2012 2:17 pm

Joined: Feb 07, 2010
Posts: 2719
Trade Rating: +6
Location: UK

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.


	Work in Progress

Addaz

Posted: Mon Nov 26, 2012 2:39 pm

Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk

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


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