Post by: jaylufc17 on March 07, 2017, 08:01:58 am
Post by: rich83 on March 07, 2017, 08:14:35 am
Post by: Bigjimknickers on March 07, 2017, 11:05:50 am
Post by: Bigjimknickers on March 07, 2017, 11:08:14 am
https://www.ebay.co.uk/itm/281907505007
Post by: Dan_FR on March 07, 2017, 11:37:22 am
Post by: MIJ_JAGGER on March 10, 2017, 03:39:02 pm
Don't use a spacer. Second Lambda is also used for fuel correction. Get it mapped properly to incorporate the modificationsI've got a spacer on mine, guy I bought the dp off had it on there so I just left it on, I haven't got a eml, haven't had the car mapped yet to stage 2, question is should I remove the spacer and drive like that till I get it mapped?
3"inch decat
Post by: pudding on March 10, 2017, 04:54:03 pm
The rear lambda is only for the EML light. It's part of legislation that emissions systems must self check. It just looks for extra oxygen in the exhaust stream which is a sign the cats aren't doing their job. But since the rear lambda is behind both cats, it doesn't know which one, so just bungs the Money light on. It doesn't alter anything in the tune since it can't determine if the extra oxygen is coming from a lean mix or a dead cat. That is the role of the front lambda sensor and is the one the ECU tunes itself from.
Those spacers move the rear O2 probe's tip out of the exhaust stream, thereby fooling it into reading the correct CO2 levels.
Post by: MIJ_JAGGER on March 10, 2017, 08:38:25 pm
Post by: Dan_FR on March 10, 2017, 10:09:28 pm