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1

Omega Electrical and Audio Help / 3.0 V6 Fault Codes...Help please!

« on: 30 October 2010, 15:30:28 »

Hi, I was wondering if anyone could make sense of the following for me.
Just rebuilt the top end of my 2000 3.0 F/L due to bad misfire. Also had to replace the cats as they were fried due to poor fuel burning and blocked them both.
I had two aftermarket cats fitted as I couldn't find originals and spoke to a really helpful guy at the shop who advised non type approved cats needed as the lambda sensors are in front of the cats so it wont affect the emmisions reading.

Not long after leaving the garage the EML came on and has been intermittantly on ever since. I did the paperclip test and it came back with 3 codes

61 - Fuel tank vent valve voltage low
89 - o2 sensor 2 open circuit
17 - Knock signal circuit 2.

Could anyone tell me if the three could possibly be related? I'm guessing the O2 (89) is a dead lambda sensor ( I re-fitted the originals) but I'm not sure about the others.
Idling on the car is rough and mpg is attrocious, around 7 to the gallon according to the trip computer.
I have done such a lot to this car and spent more than I should have so I'm hoping for an easy fix. Any help or experience would be gratefully received.

Keep up the good work guys!

SHD1968

2

Omega General Help / Re: 3.0 V6 Catalytic converter

« on: 22 October 2010, 15:08:31 »

Thanks for the replies, the cats are damaged because the unburned fuel from driving with a missfire burns in the cat and melts the monolith (or so I'm told). hence forming a plug.

Finding it hard to get second hand Vx ones though as they have a high scrap value, most of the breakers chop them off for scrap.

3

Omega General Help / 3.0 V6 Catalytic converter

« on: 21 October 2010, 23:52:05 »

Hi everyone, I'm new to the forum but have found it an invaluable source of information for an engine rebuild that I just carried out on my 3.0 Elite, thanks for all your great posts and detailed articles.
I do have a problem and a question that I hope someone can help with.
I bought the car with the dreaded cam cover oil leak. It was misfiring when I picked it up. Had to drive it about 80 miles home which it just about did. Half way home I got a whooshing of air sound from the engine and a serious loss of power.
Since done a complete top end overhaul, new everything, heads timing gear coil pack, leads the lot.
Fine on start up and tick over but taking it around the block I got the same whooshong of air sound and then rough idling.
Research points me to plugged catalytic converters due to the misfire that it had, the question that I have is does anyone have any experience with the cats on the web for around the £100 mark? I've already spent a fortune on the girl and quick fit want almost £500 that I just don't have now. Even considering second hand for now.

Any thoughts or experiences greatly appreciated.

Keep up the fine work.