Rear O2 CEL Warning - Ecuflash Fix Step by Step - Page 3

youngsyr · 24-09-2008, 21:17

Quote:

Originally Posted by b.layzell

Will this work on a standard ECU in the 260?

Yep, that's what it's designed for!

grayw · 24-09-2008, 21:18

Yes

Quote:

Originally Posted by b.layzell

Will this work on a standard ECU in the 260?

Boff · 24-09-2008, 21:29

Biggles your a god

will be doing this in the next couple of weeks thankyou thankyou thankyou....

Mr Bland · 24-09-2008, 21:45

Brilliant write up chaps

_Biggles_ · 25-09-2008, 13:36

Quote:

Originally Posted by Boff

Biggles your a god

will be doing this in the next couple of weeks thankyou thankyou thankyou....

im only a god coz i can type, grayw helped me do it

he is the god

im simply a minion

grayw · 25-09-2008, 15:39

The biggest step is having a go yourself, and you did fantastic. Look forward to edition two, of the 'How to' guide.

4g638 · 25-09-2008, 16:55

Excellent write up guys and procedure explanation,simple and crystal clear,well done!!

adamarnold · 24-10-2008, 07:57

Does this work for any evo with a rear O2 sensor or ONLY the 260?

grayw · 24-10-2008, 08:00

The reason it's for the 260, is because it has a pre-CAT that when removed, will show a CEL, due to the rear O2 not seeing the correct emissions.
Do you have a rear O2 fitted?

adamarnold · 24-10-2008, 12:26

I think the VII FQ300 has the same setup. It does have a rear O2

grayw · 24-10-2008, 12:30

Not seen one on a VII I've look at, but it's not to say they were not installed.
No Pre-CAT on them anyway, so no need to disable really.

adamarnold · 24-10-2008, 14:53

There is a rear O2 sensor after the CAT so if I remove the CAT I will get a cel light on. I think this was done as it was a UK car but not sure.

grayw · 24-10-2008, 14:58

The rear O2 sensor is not for this purpose, it's actually in front of the CAT

Quote:

Originally Posted by adamarnold

There is a rear O2 sensor after the CAT so if I remove the CAT I will get a cel light on. I think this was done as it was a UK car but not sure.

adamarnold · 24-10-2008, 17:49

I will have a look and see where the rear O2 sensor is. IIRC it is behind the CAT but will confirm this and post a picture hopefully.

If it is in front of the CAT can I just leave it in and remap without the CEL light coming on or any other problems.

grayw · 24-10-2008, 17:52

100% sure it not for the rear CAT on a VII

It will have no effect on the car if the CAT is removed, the 260 VIII is special

24-09-2008, 21:29	#33
Boff Registered User Join Date: Aug 2004 Location: Bristol Car: Evo VIII 260 Posts: 341	Biggles your a god will be doing this in the next couple of weeks thankyou thankyou thankyou.... __________________

25-09-2008, 16:55	#37
4g638 Registered User Join Date: May 2007 Posts: 5,900	Excellent write up guys and procedure explanation,simple and crystal clear,well done!! __________________ " Go tell the Spartans,passerby,that here by Spartan law we lie. " Leonidas I son of Anaxandritas II and king of Sparta,really proud to be his descendant!

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24-09-2008, 21:45	#34
Mr Bland Registered User Join Date: Aug 2007 Posts: 1,172	Brilliant write up chaps

25-09-2008, 15:39	#36
grayw Registered User Join Date: Aug 2005 Location: Hampshire Car: Evo Posts: 19,543	The biggest step is having a go yourself, and you did fantastic. Look forward to edition two, of the 'How to' guide.

24-10-2008, 07:57	#38
adamarnold Registered User Join Date: Apr 2006 Location: Bury St Edmunds Car: Evo VII FQ300 Posts: 340	Does this work for any evo with a rear O2 sensor or ONLY the 260?

24-10-2008, 08:00	#39
grayw Registered User Join Date: Aug 2005 Location: Hampshire Car: Evo Posts: 19,543	The reason it's for the 260, is because it has a pre-CAT that when removed, will show a CEL, due to the rear O2 not seeing the correct emissions. Do you have a rear O2 fitted?

24-10-2008, 12:26	#40
adamarnold Registered User Join Date: Apr 2006 Location: Bury St Edmunds Car: Evo VII FQ300 Posts: 340	I think the VII FQ300 has the same setup. It does have a rear O2

24-10-2008, 12:30	#41
grayw Registered User Join Date: Aug 2005 Location: Hampshire Car: Evo Posts: 19,543	Not seen one on a VII I've look at, but it's not to say they were not installed. No Pre-CAT on them anyway, so no need to disable really.

24-10-2008, 14:53	#42
adamarnold Registered User Join Date: Apr 2006 Location: Bury St Edmunds Car: Evo VII FQ300 Posts: 340	There is a rear O2 sensor after the CAT so if I remove the CAT I will get a cel light on. I think this was done as it was a UK car but not sure.

24-10-2008, 17:49	#44
adamarnold Registered User Join Date: Apr 2006 Location: Bury St Edmunds Car: Evo VII FQ300 Posts: 340	I will have a look and see where the rear O2 sensor is. IIRC it is behind the CAT but will confirm this and post a picture hopefully. If it is in front of the CAT can I just leave it in and remap without the CEL light coming on or any other problems.

24-10-2008, 17:52	#45
grayw Registered User Join Date: Aug 2005 Location: Hampshire Car: Evo Posts: 19,543	100% sure it not for the rear CAT on a VII It will have no effect on the car if the CAT is removed, the 260 VIII is special