Ok hope I got you interested .
What I'm after is a little advice about a prob I've been having with my 04 spider that the garage says needs a decoke by using hazelnut shells.
Basically we've had the car just over a year and we had the EOBD light come on quite a few times . First time the garage said it was due to a bad connection on the FEV , then it came on again and we choose to ignore it untill the MOT was due when it failed the emmissions check.
So back to the garage where they said a known fault with loose connections on the lambda sensors was the cause and this was done under the warrenty , light was reset and mot passed.
However a few days later the light came back on , again choosing to ignore it this time till I put the car in for the cam belt change and service . Asking them to look into the EOBD light again.
They said it needed 2 new lambdas so told them to go ahead and add it to the service etc.
Now a week later the light came on , so after having payed for the sensors was questioning wheather they needed doing in the first place .
Back to the garage where they were a little confused and had to get some 'expert' from alfa uk to have a look . They fitted some doner parts and tested for a few days in the end diagnosing it as the MAF which they replaced free of charge.
However after a week the light came back on again so back to the garage.This time the Alfa uk 'expert' has said that the engine is most likely carboned up and needs a decoke . with there being 2 options .
1 stripping down the engine , hand decoke and replace injectors £1400 or
2 putting hazelnut shells in bores and doing something ( possibly running the engine I guess ) and replace injectors £1200.
Both option seem a little expensive to me so was wondering if the old redex in the bores / fuel would help or cure it?
Any ideas most welcome.