Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mattf1 on 27 February 2010, 16:44:53

Title: 3.0 mv6 running badly, could it be cat or zorst?
Post by: mattf1 on 27 February 2010, 16:44:53

hi all, i am a new member looking for help with my mv6 3.0 elite. driving to work earlier this week the exhaust suddenly seemed to get louder with a massive power loss and what i can only explain as a missfire. a garage told me that it was a collapsed silencer so i took both the pipes off from behind the cats and started it up. problem still there. i put and endoscope up behind the cats and they both look fine. no engine management light so i dont know where to start. any help would be very appreciated. [smiley=cry.gif]

Title: Re: 3.0 mv6 running badly, could it be cat or zorst?
Post by: jonathanh on 27 February 2010, 18:40:10

where are you?  maybe someone close to you can help?

is the EML on?  are there any fault codes?

systematic diagnosic is the key.  If I were to guess it could be a blocked exhaust which has forces the SIA system to blow, creating noise but this is a guess.

Title: Re: 3.0 mv6 running badly, could it be cat or zorst?
Post by: mattf1 on 28 February 2010, 10:29:34

i live in bicester oxfordshire. the eml light has not come on and i dont have the equipment to read if there is anycode stored. what is the sia system? is it something to do with the egr or the cat pre heating system?