2.8 12V runs like sh;t

[ThatGUY]

The other thing is my injectors could be clogged a bit. I thought I read that they could be cleaned. I tested them according to the Bentley and they were all ok. But they could still be partially plugged... and new ones are way too much.

Andrew

[iain1067]

Maybe it's time for the 02 sensor/s to be replaced, i remember reading a while ago now that audi reckon on 60kmiles is about it, i wouldn't mess around with generic ones buy bosch or oem.


Iain

[ThatGUY]

I replaced both of them suckers in the past year. with the Bosch jobbies.
I appreciate the help.

Andrew

[A6 AVANT]

Could be cats collapsing or silencers blocking causing back pressure? worth a try. Did an Zetec last week that had cat gone and wouldn't run due to too much back pressure. Worth a try.
chris

[porkkis]

The rattle is another issue I think. 12 valve engines have total of 4 oil pressure valves that need replacing sooner or later.

I'm no 12v expert so don't know more. I have just read about this several times.

[jdcorr]

My brother's 80q had similar issues. Two new lambda probes sorted it. Also both of the headgaskets had failed - quite common on the early 12v. Have a look at http://www.12v.org/

[ThatGUY]

You guys are awesome thanx for the help... I well check them out.
I also had the cats replaced about a year ago with hi flow ones, not to say its not the problem.

Thanx
Andrew

[ThatGUY]

I replaced the coil-packs today and it runs a lot better. The car still drops a little RPM's at idle... I was thinking this could be because my sub amplifier draws a lot of power or it could still be something else but at least it drives good now.

Andrew