Guest smithy Posted February 12, 2011 Share Posted February 12, 2011 hi all i have just bought a 95 twin turbo supra had it about a month now was due its first mot on friday just gone so i took it in and it failed on the emissions, on first and second fast idle co2 failed but passed on idle co2...... lamda and hc were both okay. the car has no cat on it the tester said it could be its just running rich or do i need the cat on it to pass the mot ??? thanks all smithy Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted February 12, 2011 Share Posted February 12, 2011 Welcome to the site. Cat's were made to reduce emissions so yes chuck it on there for the MOT, that's what most people do. Try and find a 2nd cat (Supra came with two) as that's easier to replace. Quote Link to comment Share on other sites More sharing options...
Guest smithy Posted February 12, 2011 Share Posted February 12, 2011 the car came with no cat previous owner did not have the cat either... Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted February 12, 2011 Share Posted February 12, 2011 Some people's MOT testers are more friendly than others. Try eBay or have a look in the For Sale section here for the cat, or buy the MOT man some beers to look the other way. Mine didn't come with a cat either had to buy one. Quote Link to comment Share on other sites More sharing options...
AndyT Posted February 12, 2011 Share Posted February 12, 2011 the car came with no cat previous owner did not have the cat either... The cats have been replaced with straight through pipes for possible bpu. Try Keron, extreme performance trader here, who breaks Supras. Hell most probably have a cat. Does your car have a boost gauge? You need to know if it was bpu'd properly or you could be in trouble turbo wise. Removing the cats will allow the turbos to spin way over the top and they'll break. You should look for a restrictor ring in your exhaust pipe more than likely where the 2nd cat pipe was. Quote Link to comment Share on other sites More sharing options...
Guest smithy Posted February 12, 2011 Share Posted February 12, 2011 thanks i will have a look Quote Link to comment Share on other sites More sharing options...
Guest smithy Posted February 12, 2011 Share Posted February 12, 2011 The cats have been replaced with straight through pipes for possible bpu. Try Keron, extreme performance trader here, who breaks Supras. Hell most probably have a cat. Does your car have a boost gauge? You need to know if it was bpu'd properly or you could be in trouble turbo wise. Removing the cats will allow the turbos to spin way over the top and they'll break. You should look for a restrictor ring in your exhaust pipe more than likely where the 2nd cat pipe was. yes it does have a boos gauge in the car Quote Link to comment Share on other sites More sharing options...
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