Re: Re: Re: I've just had a similar problem.
Just to reiterate most of the stuff I'm refering to here is for a Mazda 626 , i just thought it was relevant/loosly connected.
I tried the Cat people you linked to in Notts, Tom , but couldn't get a reply on Monday about lunchtime. (maybe they where having their lunch
) The cheapest quote i got from my local 'budget' exhaust dealers was cica £275+, so i was happy to get next day del for £125 and do it myself from the people i used in wales, I think ther was only a few little quid in it.
You are right about the 0.9v with a blow torch, i think that my Mazdas lambda sensor is very borderline 'good' but it seems to be just good enough. Quite a scary test when you first do it I thought i would melt something at first , but then figured that when my Lambda is sitting there 12" away from the exhaust ports at 4500rpm for a few hours on the motorway , it must glow like Ruddolphs nose
Just for info: The car always passed the Natural idle tests, my fast idle test results where:
The pass marks are:
CO 0.30% HC 200ppm lambda 0.96 - 1.03
With original old Cat fitted:
CO = 1.85 % fail
HC = 200 Pass ( just !)
Lambda = 0.96 fail (0.97 - 1.03
With slightly newer s/h cat fitted:
CO = 0.79% fail
HC = 87 ppm pass
Lambda = 1.01 pass
With brand new Cat fitted:
CO = 0.00% pass
HC = 14 ppm pass
Lambda = 1.00 pass
Overall PASS
Yeah overall all the reading went down with the new Cat. I'm tempted to take my old one out of the bin now and save the new one for next years MOT
You obviously know what you are talking about Tom, I'll reply to the Fiat stuff on the other thread i started about Fault code reading, I have the bit between my teeth now and feel a row coming on at my local fiat dealers.
