little_miss_naughty 0 Posted November 4, 2009 I Took my rado in for an mot last sat and it failed on the emissions. What can I do to improve this? Please help i need 2 get it fixed by sat 7th or im afraid it will be off the road. thanks :( Quote Share this post Link to post Share on other sites
Alex_G60_Fanatic 0 Posted November 4, 2009 silly question but do you have a de-cat fitted to your exhaust system? if your car was made after 1992 i think you need the Cat fitted to pass the emissions test. maybe wrong with the year :confused4: Quote Share this post Link to post Share on other sites
little_miss_naughty 0 Posted November 4, 2009 Hi, Its a 1995 the mot man said to get the computer on it ? dont think it will help! someone else told me to play about with the mixture. Quote Share this post Link to post Share on other sites
Critical_Mass 10 Posted November 4, 2009 dodgy lambda? Quote Share this post Link to post Share on other sites
Skills 0 Posted November 4, 2009 How much did it fail by? Would a good old 'Italian tune up' be enough? Quote Share this post Link to post Share on other sites
little_miss_naughty 0 Posted November 4, 2009 How much did it fail by? Would a good old 'Italian tune up' be enough? Not sure he didnt say, on the mot paper it says it failed because the reading was to high after the 2nd lamda reading! Whats an Italian Tune up? Quote Share this post Link to post Share on other sites
Jay23Sx 0 Posted November 4, 2009 How much did it fail by? Would a good old 'Italian tune up' be enough? Not sure he didnt say, on the mot paper it says it failed because the reading was to high after the 2nd lamda reading! Whats an Italian Tune up? Adding something to the fuel isn't it ? :) Quote Share this post Link to post Share on other sites
Skills 0 Posted November 4, 2009 People have been known to get better emissions readings after giving the car a bit of a thrashing so i'm told! Quote Share this post Link to post Share on other sites
little_miss_naughty 0 Posted November 4, 2009 People have been known to get better emissions readings after giving the car a bit of a thrashing so i'm told! Ahhhh kind of done that already :grin: Didnt work :confused4: Quote Share this post Link to post Share on other sites
Alex_G60_Fanatic 0 Posted November 4, 2009 do you know if you have a decat fitted or Sports Catalitic converter? or maybe check out the air filter and lambda sensor Quote Share this post Link to post Share on other sites
ade1882 0 Posted November 5, 2009 my vr6 failed 2 years running on emissions it was the lamda sensor both times. Quote Share this post Link to post Share on other sites
PROVR6 0 Posted November 5, 2009 My car failed on the emissions when I first got it. I changed the oil, air, and fuel filters, the spark plugs and put some redex, injector cleaner in the petrol and gave it a good hard drive before the mot. It passed easily. As others have said a faulty lambda and a defective cat or no cat can cause problems. Quote Share this post Link to post Share on other sites
Guest Posted November 11, 2009 Look for two snapped wires leading from the lambda to the ECU. Thats what failed mine. Quote Share this post Link to post Share on other sites
Critical_Mass 10 Posted November 11, 2009 Yes, look down the side of the drivers suspension turrent, back left of the engine, below the air intake pipe. Thats where the lambda connects to the engine ecu loom. Its been know for wires to be found broken down there, happened to me and a few others. Quote Share this post Link to post Share on other sites