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[damon80]

Hi Folks,

Got my new miggy, and chuffed with it so far  

But, driving into work today, the Engine Management light came on (not the one with the spanner in the car, the one that looks like an engine).

Anyway, I pedal-tested it, and it's come up with the following codes:

1530 (something to do with the air-con relay, but the air-con works fine?)
0420 (Catalyst System Efficiency Below Threshold (Bank 1) )
0430 (Catalyst System Efficiency Below Threshold (Bank 2) )

I've also noted that on the engine breather box (the black thing that says "Ecotec" on it on top of the engine), one of it's outlets that you connect the 4 hoses onto has been broken off at some point.  As you look at the top of it, from left-to-right, it's the 2nd one in from the left.  Is this likely to be contributing to this problem?

The car is a 2004 3.2 Manual.

Cheers

[Danny]

the 4 little hoses iirc are breather hoses, thus giving you an air leak?

await confirmation, i know as much about cars as i do about the moon!

[johnnycboy]

Hi Folks,

Got my new miggy, and chuffed with it so far  

But, driving into work today, the Engine Management light came on (not the one with the spanner in the car, the one that looks like an engine).

Anyway, I pedal-tested it, and it's come up with the following codes:

1530 (something to do with the air-con relay, but the air-con works fine?)
0420 (Catalyst System Efficiency Below Threshold (Bank 1) )
0430 (Catalyst System Efficiency Below Threshold (Bank 2) )

I've also noted that on the engine breather box (the black thing that says "Ecotec" on it on top of the engine), one of it's outlets that you connect the 4 hoses onto has been broken off at some point.  As you look at the top of it, from left-to-right, it's the 2nd one in from the left.  Is this likely to be contributing to this problem?

The car is a 2004 3.2 Manual.

Cheers

could well be due to drawing more air into the system.  someone with more knowledge will be along soon

[TheBoy]

Though more than likely its a 2.6/3.2 with the dreaded pre-cat efficiency issue  

[damon80]

Thanks for the prompt reply folks  

Though more than likely its a 2.6/3.2 with the dreaded pre-cat efficiency issue  

Why does this not fill me with confidence...    

What's involved in getting it sorted?

[bob.dent]

I think you'll find it's a pretty common problem with the 3.0 and 3.2 V6's. Usually the pre-cats not being up to the job on these engines.
My EML has been on for months. I have it reset occassionally but it always comes back on again eventually.

[TheBoy]

I think you'll find it's a pretty common problem with the 3.0 and 3.2 V6's. Usually the pre-cats not being up to the job on these engines.
My EML has been on for months. I have it reset occassionally but it always comes back on again eventually.

Only the Motronic 3.1.1 cars (2.6 and 3.2) have precats.

I believe Albatross overcame it by moving the lamda sensors to be each side of the main cats, rather than precats.

[damon80]

How do I go about resetting it?  Is it something that I can do by disconnecting the battery for an hour?  Or does the ECU store them until it's reset by Tech2?

[bob.dent]

How do I go about resetting it?  Is it something that I can do by disconnecting the battery for an hour?  Or does the ECU store them until it's reset by Tech2?

Either a Tech2 or my garage have done it using a Bosch diagnostics system.

[TheBoy]

How do I go about resetting it?  Is it something that I can do by disconnecting the battery for an hour?  Or does the ECU store them until it's reset by Tech2?

A cheap obdii code reader will reset it, but it will come back.

[damon80]

Hmmmm...  

Could it be that it's drawing in too much air because of the breather box being broken, so then it's throwing more petrol into the cylinders?

Or am I looking at having to move the lambda sensors (which I really don't like the sound of!   )

[bob.dent]

Hmmmm...  

Could it be that it's drawing in too much air because of the breather box being broken, so then it's throwing more petrol into the cylinders?

Or am I looking at having to move the lambda sensors (which I really don't like the sound of!   )

I've just got used to having the light on all the time now. Not sure what I'm going to do long term - probably will have to get the sensors moved eventually.

[TheBoy]

Hmmmm...  

Could it be that it's drawing in too much air because of the breather box being broken, so then it's throwing more petrol into the cylinders?

Or am I looking at having to move the lambda sensors (which I really don't like the sound of!   )

Fix the known issues, as that is always the best place to start.  But in this case, it is a well known issue

[damon80]

Okidoki - thanks again for all your help folks  

I'll try sorting the breather box first, and see if that helps...  Not holding by breath, but it needs replacing anyway.

Now, anybody selling a breather box for a 3.2???  

[TheBoy]

Okidoki - thanks again for all your help folks  

I'll try sorting the breather box first, and see if that helps...  Not holding by breath, but it needs replacing anyway.

Now, anybody selling a breather box for a 3.2???  

Same as all v6 I believe, nothing special about 3.2 one...