High Lambda Figures

Anonymous · December 23, 2005, 12:35

Your right, i've just checked my MOT failure sheet and it was

co 7.85%
hc 401ppm
lambda .791

Which was definatly rich so i had to take fuel out. Everyone else seems to be the other way around so they must of increased the duty to compensate.

spit · December 23, 2005, 12:51

Quote from: "aaronjb"I guess perhaps add some injector duty (if it was lean) and perhaps adjust the timing a little for a more complete burn (to lower the CO figure back down again) - probably advance the timing a little, at a guess.

Sound right?

[edit] Oops, got advance & retard backward s:oops: :oops: s:oops: [/edit]

Hmmmm, I'm gonna have to work on this one. My Lambda is a still a smidge lean but if I bring it down the CO fails. Perhaps I need to get this ignition harness assembled? s:shock: :shock: s:shock: Yo 'kin Ho s:lol: :lol: s:lol:

spit · January 16, 2006, 20:38

Any of you guys superstitious? Friday 13th was MOT day and my '2 is now officially very much off the road with a flunked MOT s:(

s:(

I've dumped the old and tired NB sensors and have got the WB triggering the ECU - figured it would be more stable....... but it hasn't settled down yet.

Lambda is still too high (1.08 - 1.10) and CO is miles out. A quick blast round the block and CO briefly came down into pass territory but the MOT probe still gave a failed (lean) lambda, and never were the two passing at the same time s:? :? s:?

Looks like my next post will be under Private Sales. Oh well, FI was fun while it lasted. I am sooo hacked off s:cry: :cry: s:cry:

philster_d · January 18, 2006, 12:21

Bump

Whats the answer to this? im not confident to go turbo until I know I can get an MOT.

Also I must only be a few months from needing my MOT doing so its not like some people who have a year to sort it.

Philly

markiii · January 18, 2006, 20:53

get your mot early then you have a year torectify any issues

philster_d · January 18, 2006, 22:53

can you realy get it a few months early ?

aaronjb · January 18, 2006, 23:02

I believe you can get it at any time, and if you do it early and present your old MOT cert, you can get a 'long' MOT certificate (runs for 13 months, not 12)

spit · January 18, 2006, 23:05

Quote from: "philster_d"can you realy get it a few months early ?

Looks like it. My local garage offered a test before Christmas and a certificate to continue from the date of expiry (13th Jan).

If there is a time limit for overlap - and i suppose there must be - it wouldn't prevent you from getting 12 months on a new certificate and writing off what's left on your old one.

Unfortunately, I just ran out of time with duff emissions numbers. s:cry: :cry: s:cry:

*edit* He's quick that Aaron bloke s:wink: :wink: s:wink: */edit*