sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 1m 8d Gender: Male Location: Far north queensland Posted 14/12/11 07:13 AM Share Posted 14/12/11 07:13 AM ballistic cat Link to comment Share on other sites More sharing options...
fastfwd Member 103 Member For: 13y 10d Posted 14/12/11 07:22 AM Author Share Posted 14/12/11 07:22 AM This is the cat I got: http://www.ebay.com.au/itm/230650212802?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649The cat gives a euro 3 emissions standard which is what the stock cat is so it shouldn't pose a problem.2ndly I haven't heard of any car that can confused the ECU with the amount of boost once the car has already combusted. Unless there was a sensor in the exhaust that regulates exhaust pressure and flow of some sort. Kinda doesn't make sense.Could you please elaborate a bit more. Link to comment Share on other sites More sharing options...
cobramad Member 824 Member For: 19y 4m 15d Gender: Male Location: Perth Posted 14/12/11 08:20 AM Share Posted 14/12/11 08:20 AM The first O2 sensor looks at the exhaust gases and measures richness or lean-ness (Lambda) so cycles between 0v and 1v, about once per second. the post-catalyst 02 sensor also measures Lambda and its output is relatively steady in comparison to the first sensor ( .8 to.9v) If the reading from the second sensor fluctuates the PCM then thinks that the catalyst is not functioning correctly and flags a fault condition. I have seen rear sensors that cycle incorrectly and still flag a catalyst fault when there wasnt one. O2 sensors have to function in a harsh enviromnent and dont last forever. As the voltage they deliver is relatively small (less than 1v) its easy to see how one can cause incorrect codes to flag. There are much more clever forum members whose explanations may be clearer to understand so hopefully they can help you out. Link to comment Share on other sites More sharing options...
Dillz Three pedals are better then two.. Donating Members 15,637 Member For: 17y 6m 7d Gender: Male Location: Melbourne Posted 14/12/11 08:23 AM Share Posted 14/12/11 08:23 AM This is the cat I got: http://www.ebay.com....984.m1497.l2649The cat gives a euro 3 emissions standard which is what the stock cat is so it shouldn't pose a problem.2ndly I haven't heard of any car that can confused the ECU with the amount of boost once the car has already combusted. Unless there was a sensor in the exhaust that regulates exhaust pressure and flow of some sort. Kinda doesn't make sense.Could you please elaborate a bit more.Do you mind throwing up some pics and give a bit of a review of that cat when you get it? They have been around for a while but there's not much info floating around on them.Oh and how does a cat that flows 4 times better then the stock one produce the same emissions? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 6d Gender: Male Location: @ my laptop Posted 14/12/11 08:25 AM Share Posted 14/12/11 08:25 AM Very good answer.Just because a cat is euro 3 does not mean it will not trigger your engine light, because it has lower cpi count it will be treating less exhaust gas so there is a strong chance it will still trigger the engine light.Because the exhaust system will have less back pressure, the turbo will spool up easier which can lead to an overboost situation unless it is tuned for it. Link to comment Share on other sites More sharing options...
fastfwd Member 103 Member For: 13y 10d Posted 14/12/11 08:57 AM Author Share Posted 14/12/11 08:57 AM (edited) Do you mind throwing up some pics and give a bit of a review of that cat when you get it? They have been around for a while but there's not much info floating around on them.Oh and how does a cat that flows 4 times better then the stock one produce the same emissions?Sure can...Isn't that what a high flow cat is made for? high flow and same emissions?Very good answer.Just because a cat is euro 3 does not mean it will not trigger your engine light, because it has lower cpi count it will be treating less exhaust gas so there is a strong chance it will still trigger the engine light.Because the exhaust system will have less back pressure, the turbo will spool up easier which can lead to an overboost situation unless it is tuned for it.Ahh yes overboost situation I can understand that but the way "cobramad" was putting it as if the car didnt know what boost to give low or high. Overboost is completely understandable. The lower back pressure meaning higher flow which the turbo overcompensates for and might over boost 1-2 psi which is fine for the daily drive for a month or two until I get it tuned properly. Edited 14/12/11 08:58 AM by fastfwd Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 6d Gender: Male Location: @ my laptop Posted 14/12/11 09:01 AM Share Posted 14/12/11 09:01 AM the overboost may trigger the ecu to go into limp mode Link to comment Share on other sites More sharing options...
fastfwd Member 103 Member For: 13y 10d Posted 14/12/11 09:04 AM Author Share Posted 14/12/11 09:04 AM the overboost may trigger the ecu to go into limp modeAre you serious....what doesnt trigger the ECU to go into limp mode? Link to comment Share on other sites More sharing options...
Dillz Three pedals are better then two.. Donating Members 15,637 Member For: 17y 6m 7d Gender: Male Location: Melbourne Posted 14/12/11 09:34 AM Share Posted 14/12/11 09:34 AM Sure can...Isn't that what a high flow cat is made for? high flow and same emissions?Not same emissions, they probably couldn't care less and just say that to help sell their product. Link to comment Share on other sites More sharing options...
Vevapower Waiting for the 1st N/A 12! Donating Members 2,533 Member For: 16y 9m 22d Gender: Male Location: Sydney Posted 14/12/11 10:10 AM Share Posted 14/12/11 10:10 AM if you run E85 then these one's I've found work the best:- Link to comment Share on other sites More sharing options...
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