Galliano Posted April 21, 2015 Share Posted April 21, 2015 Hi guys. Looking for someone with knowledge in the engine department - preferably fueling.My MOT on the Paseo failed emissions as they are sky high. 0.6* on the CO2 and 452 on the HC. My tester seems to think it is running rich on fuel. Something not telling it to burn enough? Something not sensing the correct amount of air?I had a new exhaust fitted 2 weeks ago. It'd about 4 months old but i had to remove the decat exhaust. I put it in with a cone filter however upon failing, dug out my OE aairboz and brand new filter, but it's still failing on those above figures. I still have the old exhaust, and my tester seems to think maybe the oxygen sensor from the exhaust would help matters. So we will try that tomorrow.Is there any other items to check? Plugs and leads seem tightly in there, but maybe the plugs aren't the correct ones? The car has done 170k on the original engine and has full service history, and he doesn't think it's anything to do with the valve stem seals as it is more air related.Any help would be great.CheersSam Quote Link to post Share on other sites
mikey4410 Posted April 21, 2015 Share Posted April 21, 2015 just find a decent mot shop lol.never had emissions tested in 5 years on any of me cars. Quote Link to post Share on other sites
Galliano Posted April 21, 2015 Author Share Posted April 21, 2015 If only. I wanna get it done right to be honest. Other than this it's only an advisory on brake lines slightly corroded. Quote Link to post Share on other sites
Nick666Akers Posted April 22, 2015 Share Posted April 22, 2015 Hi guys. Looking for someone with knowledge in the engine department - preferably fueling.My MOT on the Paseo failed emissions as they are sky high. 0.6* on the CO2 and 452 on the HC. My tester seems to think it is running rich on fuel. Something not telling it to burn enough? Something not sensing the correct amount of air?I had a new exhaust fitted 2 weeks ago. It'd about 4 months old but i had to remove the decat exhaust. I put it in with a cone filter however upon failing, dug out my OE aairboz and brand new filter, but it's still failing on those above figures. I still have the old exhaust, and my tester seems to think maybe the oxygen sensor from the exhaust would help matters. So we will try that tomorrow.Is there any other items to check? Plugs and leads seem tightly in there, but maybe the plugs aren't the correct ones? The car has done 170k on the original engine and has full service history, and he doesn't think it's anything to do with the valve stem seals as it is more air related.Any help would be great.CheersSamWhat conditions are the plugs in dude? Colour wise? When was your tester last calibrated? As anything that's being de-catted, naturally your going to find a higher HC level than normal, just dodgy MOT it mate! Quote Link to post Share on other sites
Galliano Posted April 23, 2015 Author Share Posted April 23, 2015 Wish I could find somewhere local for that! Changed the lambda sensor and still nothing. Hoping I can get some news from diagnostics Quote Link to post Share on other sites
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