My mate has a signum 2004 elegance 2.0t
He has had an off and on problem with the emissions light coming on. I cleared this a few times with the "cough cough" pretend Tech2 device but it would come back in a matter of seconds.
He took it to a garage and they found that the lambda sensor cables "I beleive the one behind the cat" had been cut or just had come apart in the middle.
They joined the wires somehow and wrapped it up with insulating tape.
I can clear the fault code now and it runs for about a day but then the fault comes back.
Im thinking dodgy repair (it does not look good) and some if not a few cables are coming apart slightly when flexing when driving.
Im going to get under it tomorrow and remove it and try soldering the wires then heat shrinking it and making sure its water tight etc.
If that does not fix it then its a new sensor but the price of these are rather high.
I was thinking of buying a non GM part and exchanging the end connector for the one he has at the moment.
What I'm asking is it worth it or am I asking for trouble going down this route.
Are the non GM sensors any good?
Will a wire repair be up to the job?
Will exchanging the existing connector onto a non GM part be any good?
Should we just bite the bullet and get a new proper one. If so does anyone have any good to links for this part at a good price.