PazisFab

Thanks, I SO wish I had fitted a genuine one. But I can't get my money back on this one unless it is proven to be faulty or not fit for the purpose intended. Sorry to convey my ignorance but what is a "pug btw"?

Thanks, but I've quoted two sets of emissions figures, one before fitting a new pre-cat sensor and another AFTER fitting the new sensor. Still the same. What is the HC figure actually saying??????

It's funny, the guy at Online Automotive, who are saying the fault isn't with their cat, even gave me a price to supply me a MAF sensor.

Had same problem with a Sony and did exactly this as per Sony instructions which solved the problem

No, I've only just joined Briskoda. I did read the other post but unfortunately I had already fitted this cheap cat. The P codes given by Skoda are: 16514 P0130 O2 Sensor Circ. Bank1-Sensor1 Malfunction 17549 P1141 Load detection Implausible value 17584 P1176 Correction behind catalyst. B1 Control limit reached Sporadic 16524 P0140 O2 Sensor Circ. Bank1-Sensor2 No activity detected Sporadic 16514 P0130 O2 Sensor Circ. Bank1-Sensor1 Malfunction Sporadic I looked up these codes on the net and just get same explanation. The issue I have is that the company who supplied the cat (Online Automotive) say that the Hydrocarbon level of 173ppm (162ppm in second test) is clearly showing that the engine is running far too rich and that the fault is at the engine not the cat. The local garages have just said that the Lambda figure of 1.00 shows the mixture from the engine is fine but not being adjusted by the cat. All I know is the spark plugs look just how they should and that the car runs fine. So who is right???:confused:

Engine management light on on my daughters 2001 Fabia 1.4MPi 8v Went to Skoda dealer for diognosis and was informed needed new cat (£816.00 fitted :eek:). We were given the report of the following codes: P0130, P1141, P1176, P0140, P0130 I fitted a new (non Skoda) cat but it failed emissions test. Print out from my local garage is as follows: CO level 0.77%, HC level 173ppm, CO2 level 13.90%, O2 level 0.54%, LAMBDA 1.00, Oil Temp 95c. They say the problem is with the new cat. I phoned another local garage and they agree based on these figures. I phoned the cat people who wanted the figures faxed through and after looking at them say the probem is not with the cat but probably with the coil pack or Mass air flow sensor. There is a slight lumpyness when idling but I changed the spark plugs and the ones that came out looked lovely, grey - light brown, not suggesting car running rich. So off to another garage and diagnostic test and on the way the light came back on the dash (after being reset by Skoda). After reading faulty Lambda and checking it he said the front lambda sensor was not switching. This guy said that it looked like faulty cat but wouldn't condemn it untill Lambda sensor changed. So forked out more money and fitted the new front sensor. Went back for reset and check and guess what? No different! His test results after replacing the Lambda: Hydrocarbons 162ppm, Carbon Dioxide 8.98%, Carbon Monoxide 0.69%, Oxygen 2.11%, Correction CO 1.07%, LAMBDA 1.11 I asked these garages about coil pack or MAF sensor but they disagreed that this could be the problem. Please can anybody help??????:confused: Incidentally, the new cat makes a high pitch noise under load which goes when you ease off on the throttle. Definitely no leaks on the exaust.

Thanks, yes it is a 1.4MPi 8v. If the cat is faulty then I am asured it will be replaced under warrenty after being returned and tested by the manufacturers, which would be hassle and expense. But they are adamant that it is not the cat judging from the quoted figures. My daughter hasn't noticed if it's burning more fuel. Pottering round town it does about 30-35mpg.

What's the progress so far? My daughters Fabia has the same problem. Went to Skoda dealer for diognosis and was informed needed new cat (£816.00 fitted :eek:). We were given the report of the following codes: P0130, P1141, P1176, P0140, P0130 I fitted a new (non Skoda) cat but it failed emissions test. Print out from my local garage is as follows: CO level 0.77%, HC level 173ppm, CO2 level 13.90%, O2 level 0.54%, LAMBDA 1.00, Oil Temp 95c. They say the problem is with the new cat. I phoned another local garage and they agree based on these figures. I phoned the cat people who wanted the figures faxed through and after looking at them say the probem is not with the cat but probably with the coil pack or Mass air flow sensor. There is a slight lumpyness when idling but I changed the spark plugs and the ones that came out looked lovely, grey and light brown. So off to another garage and diagnostic test and on the way the light came back on the dash (after being reset by Skoda). After reading faulty Lambda and checking it he said the front lambda sensor was not switching. This guy said that it looked like faulty cat but wouldn't condemn it untill Lambda sensor changed. So forked out more money and fitted the new front sensor. Went back for reset and check and guess what? No different! His test results after replacing the Lambda: Hydrocarbons 162ppm, Carbon Dioxide 8.98%, Carbon Monoxide 0.69%, Oxygen 2.11%, Correction CO 1.07%, LAMBDA 1.11 I asked these garages about coil pack or MAF sensor but they disagreed that this could be the problem. Please can anybody help??????:confused: Incidentally, the new cat makes a high pitch noise under load which goes when you ease off on the throttle. Definitely no leaks on the exaust.