KW-rscos Posted June 7, 2012 Share Posted June 7, 2012 Hi Guys, Just need a bit of advice as Massively failed on my emissions today, It is a '98 1.8 Escort GTi with a 2.0 Zetec engine. Results below: Fast Idle: CO 2.064% (upto 0.300%) FailHC 81ppm (Upto 200ppm) PassLambda 0.949 (0.95-1.09) Fail Secomd Fast Idle: CO 2.371% FailHC 80ppm PassLambda 0.940 Fail Natural Idle CO 0.367% (Upto 500%) Pass. It was fine last year and the only difference is that it has had a new headgasket and now has a drilled airbox. Any suggestions please help. Link to comment Share on other sites More sharing options...
Stu Posted June 7, 2012 Share Posted June 7, 2012 Is it running a 2L ECU/injectors/MAF sensor? Link to comment Share on other sites More sharing options...
KW-rscos Posted June 7, 2012 Author Share Posted June 7, 2012 No it is Running the 1.8 ECU, injectors and MAF, but it was the same last year and passed fine, well better than fine last year. Link to comment Share on other sites More sharing options...
Stu Posted June 7, 2012 Share Posted June 7, 2012 You were lucky last year. Chances are it was only just working right with closed loop fuelling. Now the environment/conditions are slightly different and it's not running right, which is what i'd expect. Link to comment Share on other sites More sharing options...
EscortNreg Posted June 7, 2012 Share Posted June 7, 2012 Try it with a standard air box and run loads of fuel engine cleaning stuff through her. I'm no mechanic and not mechanically minded at all, but that's what I used to do. Lol Link to comment Share on other sites More sharing options...
sidrick Posted June 7, 2012 Share Posted June 7, 2012 Definitely a subject for the main message board. Link to comment Share on other sites More sharing options...
Ahmotorsport Posted June 7, 2012 Share Posted June 7, 2012 Did you hammer the f**k out of it before MOT? (For the mods, it's okay, Stevemo told me it's not swearing if i take some letters out) Link to comment Share on other sites More sharing options...
KW-rscos Posted June 7, 2012 Author Share Posted June 7, 2012 Did you hammer the f**k out of it before MOT? (For the mods, it's okay, Stevemo told me it's not swearing if i take some letters out) No I didnt, but then I didnt last time either, I understand the environement may be different this year, but surely not form a really comfortable pass to a massive fail? Link to comment Share on other sites More sharing options...
Ahmotorsport Posted June 7, 2012 Share Posted June 7, 2012 Should always get the car really hot before taking it to an MOT, that way you've helped clear the cat out a bit and got the engine running at it's best. Link to comment Share on other sites More sharing options...
sortedford Posted June 7, 2012 Share Posted June 7, 2012 We've moved this topic into the correct section. Link to comment Share on other sites More sharing options...
Naylor2006 Posted June 7, 2012 Share Posted June 7, 2012 (edited) Should always get the car really hot before taking it to an MOT, that way you've helped clear the cat out a bit and got the engine running at it's best. Yeh then they test it later that afternoon lol You shouldnt really have to do anything if everythings running right though, really trying to avoid blowing my own trumpet here but I passed pretty confortably in my 2.0 converted escort, got 2.0 maf and ecu though. My test results were taken after less than a 2 mile drive to the centre which was from a cold start. http://www.dontcallmeshirley.eclipse.co.uk/phils/phils_pics/mynewcar/MOT2012/IMG_0909.JPG I would be more inclined to say with your results either its down to the wrong ECU and MAF (which either way will not be helping) or theres a fault which could be plenny things (CAT, Lambda Sensor MAF, IAT etc), you could try giving it a rag to get it through but it could be twice as bad next year. My mate down the road ran his 2.0 one a 1.8 ECU and it ran like a slag. Edited June 7, 2012 by Naylor2006 Link to comment Share on other sites More sharing options...
KW-rscos Posted June 7, 2012 Author Share Posted June 7, 2012 Mine runs lovely on the 1.8, always has done, been like it for two years now with no troubles :/ Link to comment Share on other sites More sharing options...
Naylor2006 Posted June 7, 2012 Share Posted June 7, 2012 Mine runs lovely on the 1.8, always has done, been like it for two years now with no troubles :/ Until now Link to comment Share on other sites More sharing options...
Ahmotorsport Posted June 7, 2012 Share Posted June 7, 2012 It's all well and good saying it was good a year ago, or two years ago, but that was then and this is now. Link to comment Share on other sites More sharing options...
Naylor2006 Posted June 7, 2012 Share Posted June 7, 2012 With reference to the drilled airbox, i'd be surprised if this was the sole culprit, cars been passing on cone filters for ages and surely thats worse than a driller. Various tricks im sure, rag the car, disconnect the MAF but your gonna end up hiding the problem, you may have to start replacing bits Link to comment Share on other sites More sharing options...
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