Lambda Faults

[Alfa156Melb 9]

Hey Smaky,

 

I decided to clean the MAF today, which turned out to be a good idea.. the car feels much more alive now.. which is good..

 

But before I did that, I plugged MES in to check for any faults and two came up.. MES says that the dash light was on, but I don't remember seeing that... anyway, I cleared the faults and took her for a drive with MES plugged in...

 

The pre lamba's read about 2.5 and the post lambda's 0.6 on average on a steady throttle at about 50mph.... are you happy with those numbers?

 

Here's the screen shots of both faults: Anything to worry about? And are those battery voltages a bit low?

 

 

Edited February 10, 2013 by Alfa156Melb

[Smaky 73]

To be honest, no, those figures point towards a failing post cat lambda, BUT, first I would unpplug the lambda probe and reconnect it it, go out for another spin with the diag on and see what it read after that, if it said it was still fatal then I'd replace it.

[Alfa156Melb 9]

Ill have to wait a while, as my tools are up at my parents.. Ill report back when done.

 

What pre and post numbers should we expect on average?

 

Sent from my iPhone using Tapatalk

Edited February 11, 2013 by Alfa156Melb

[Smaky 73]

22mm spanner is all you need.

[Alfa156Melb 9]

yeah, but I'm waiting on that engine mount to arrive so, I'll do the lot at once.

 

The faults haven't reappeared.. yet.

[Alfa156Melb 9]

Which side is lambda 2 by the way?

[Smaky 73]

right hand

[Alfa156Melb 9]

as in cam belt side?

[Morgan 46]

It's worth noting that left and right are different in Australia (like water running the opposite way down the plughole).

[Alfa156Melb 9]

It's worth noting that left and right are different in Australia (like water running the opposite way down the plughole).

 

Bloody poms..

[Alfa156Melb 9]

Ok so, how the phuck are u meant to get to the post lambda sensors without removing the manifold? Grrrr

[Smaky 73]

Special spanner

[Alfa156Melb 9]

Sooooooo its not just a 22mm spanner, Its a special bloody 22mm spanner................

[Smaky 73]

It's one with a little bend in it.

[Alfa156Melb 9]

No worries - the only time i get to work on my car is at my parents house - they have a garage and all my tools are stuff is there.. only thing is, its 3 hours from me.

 

Anyway, it was still a good car session - I found the source of the rattle under load, it was a loose rear heat shield and better still, the thud in my rear suspension that's been there since i installed the B8's, was the rear door loose on its catch.

 

Happy to have those two irritating noises sorted out.

 

I'll buy one of those bendy spanners and play next time I'm up there, in about 3 weeks.

[Smaky 73]

No wonder the knock was tricky to find, now you see why I prefer to have my hands and ears on the car, otherwise it's pure guesswork.

[Alfa156Melb 9]

Of course! But Smaky you do a pretty damn good job remotely.. 9 times out of 10 your bang on right.