Lambda sensor

1. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #1 27th October 2011, 19:52

   This is my lambda Ive just removed from my manifold, does this look normal? Id have thought if it were running rich it'd be sooty as I seem to be getting a lot of overfuelling. On a chilly evening like tonight the car is kicking out a lot of petrol smelling steam/ white smoke. And it stinks properly!
   Car isnt using water or oil and doesn't overheat:
   
   
2. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #2 27th October 2011, 19:53

   that looks quite bad tbh
3. samuel13 Newbie Joined: Oct 2011 invernes (ross shire) Posts: 23 ibiza 1.9tdi sport (130) saxo vts

   #3 27th October 2011, 20:04

   if it was faulty it would bring th light on the dash. if its okay once th car warms up its normal. cause the car uses more fuel on warm up from cold and thats where th petrol smell will come ffrom and some white smoke on a cold day can be normal
4. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #4 27th October 2011, 20:52

   Trust me its lots of smoke. Its petrolly even when warm and still smokes then
5. tom_lloyd_4 Regular Poster Joined: Nov 2010 alton hampshire Posts: 348 97 mk1 vtr 85 LR 90

   #5 27th October 2011, 21:24

   that's ruined mate white is silica from crappy fuel is your car decat if not your cat is knackered to get your self an ngk (ntk) one the cheap ones are shit
6. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #6 27th October 2011, 21:41

   Car is decatted. This is a mk1 with 4-2-1 manifold mate, so theres no hint of a cat anywhere that near the head. Got any more advice?
7. user_43898 Established Member Joined: May 2010 leicester Posts: 1446 Clio 182 Inferno

   #7 27th October 2011, 22:36

   Tbh mate, when you decat your car your going to have a much higher Hydrocarbon (unburnt fuel) content anyway, temp sensors will cause overfueling too. May i ask what makes you think its overfueling??, and the white steam you describe would be normal as the weather is now turning colder you going to notice more steam coming from the exhaust as is the petrol smell as its a decat, unless the car indicates theres an issure then leave it alone try not to look into it too much.... If it aint broke- dont fix it
8. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #8 27th October 2011, 22:45

   Engine temp sensor has been changed too. I agree with what you are saying but this smoke I feel is excessive even for a decat. I mean it could just be condensation but Im not sure. The fact its an xsi engine with xsi injectors in a VTR rail also makes me think it could be overfuelling, it really does stink of fuel. Other peoples decatted cars when hot dont seem to kick out as much as mine does I think