mattyb Donating Members 1,097 Member For: 15y 10m 3d Gender: Male Location: Gold Coast, QLD Posted 21/05/09 04:49 AM Share Posted 21/05/09 04:49 AM Has anyone had a problem of their engine light coming on due to changing the standard cat for a hi flo one??? I had my Hi Flo fitted on wednesday, and the engine light won't go off. Is there any way to reset this light, I fon't have the coin for a Flash tune yet Link to comment Share on other sites More sharing options...
XR06T Silver Donating Members 4,146 Member For: 18y 9m 26d Gender: Male Posted 21/05/09 04:51 AM Share Posted 21/05/09 04:51 AM if your cat doesn't have room for the 2 o2 sensors the bf has, it throws up a code.take it back to the exhaust shop and get them to make sure there are enough holes in the exhaust for BOTH the o2 sensors. Link to comment Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 20y 11m 22d Gender: Male Location: Victoria Posted 21/05/09 04:57 AM Share Posted 21/05/09 04:57 AM It will still make the light come on with 2 sensors because the second sensor is reading outside what the standard tune considers normal.You should've only changed the cat right when you're ready to get the custom tune done. Link to comment Share on other sites More sharing options...
RIXT Member 193 Member For: 15y 2m 23d Gender: Male Location: perth hills Posted 21/05/09 05:21 AM Share Posted 21/05/09 05:21 AM I second that you will have the light on because the ecu sees it as a faulty cat the light being on is not a problem having the hi flo cat on without tune is you must not give your car any sort of sh*t until it is tuned then you will be able to have the warning light turned off. Ric. Link to comment Share on other sites More sharing options...
mattyb Donating Members 1,097 Member For: 15y 10m 3d Gender: Male Location: Gold Coast, QLD Posted 21/05/09 08:04 AM Author Share Posted 21/05/09 08:04 AM Cheers guys. :stupid2: Link to comment Share on other sites More sharing options...
anthb86 Member 11 Member For: 15y 2m 25d Gender: Male Location: Mordialloc, VIC Posted 04/11/09 09:41 PM Share Posted 04/11/09 09:41 PM my bf has come up with the same thing - error code po420 catalyst system effiency below threshold. It has had a custom tune since the 200cpi cat went in. However, the car does seem to miss when it is on idle and has droped a bit of power. Link to comment Share on other sites More sharing options...
turbotimbo Member 6 Member For: 14y 5m 30d Posted 12/12/09 02:10 AM Share Posted 12/12/09 02:10 AM I got told when I changed my dump pipe I needed a retune, and havent had any problems, except with wheel spin but that's not really a problem Link to comment Share on other sites More sharing options...
ALF05T Member 453 Member For: 17y 3m 3d Gender: Male Location: Sydney Posted 13/12/09 03:25 AM Share Posted 13/12/09 03:25 AM My Engine light comes on when the car revs past 2500-3000 all the way to redline and won't go off till I back off (probably 1 second after).I have replaced the o2 sensor on the dump pipe (off the turbo), TP Sensor (on the throttle body)and the coil packs / spark plugs.This problem has been a pain in the ars for about 2 years. No error code comes up on the tuners code detector.Has anyone else had or still has this same issue I have? Help would be greatly appreciated. Link to comment Share on other sites More sharing options...
ALF05T Member 453 Member For: 17y 3m 3d Gender: Male Location: Sydney Posted 13/12/09 08:05 PM Share Posted 13/12/09 08:05 PM Has no one had this problem??? Link to comment Share on other sites More sharing options...
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