pedro2682 Posted September 16, 2014 Report Share Posted September 16, 2014 MOT done today, and it failed on emissions. Done all the usual EGR, plugs, leads, coil pack, etc etc. Tester says its dumping a siht load of fuel. Lambda probe maybe?, what's the average cost for a dignostics test. Cheers. Quote Link to comment Share on other sites More sharing options...
weslangdon Posted September 18, 2014 Report Share Posted September 18, 2014 (edited) Lots of cash for a VAG diagnostic, I have an EPC light showing and briefly yesterday an emissions light also showing. A plug in by my local auto electrician shows no fault despite the EPC light. I have had emissions issues with a Focus ST170 in the past and my MOT tester recommended a dose of "cat cleaner" [from any motor factor.] I used this 2 years running and it really does work. This is, at under £20 a quick fix and if your car only does short runs the most likely issue rather than anything major, its certainly something I will use in the week before my next MOT. The other thing to look at if there is an air/fuel mismatch is the air filter Edited September 18, 2014 by weslangdon Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 23, 2014 Author Report Share Posted September 23, 2014 Got "Cat cleaner", pre cat Lamba sensor and a new MAP sensor as they seem to be all related some way or other. Do I replace the parts before, during or after using the cleaner. Cheers :-) Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 23, 2014 Author Report Share Posted September 23, 2014 Air/Fuel mismatch in the air filter ? Quote Link to comment Share on other sites More sharing options...
weslangdon Posted September 24, 2014 Report Share Posted September 24, 2014 when the car is half full of petrol add the cat cleaner and then go for a long run, if you are over fuelling, the problem might be insufficient air so check that your air filter is clean, does that make sense? Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 26, 2014 Author Report Share Posted September 26, 2014 I Thank You..........New Air Filter, Post Lambda Sensor fitted, Codes Reset....................!!!!!STILL MISFIRING!!!!! Quote Link to comment Share on other sites More sharing options...
weslangdon Posted September 27, 2014 Report Share Posted September 27, 2014 I would have fitted nothing till I'd run the cat cleaner through the system, having done that I'd have tested each addition in turn Quote Link to comment Share on other sites More sharing options...
Dblock Posted September 27, 2014 Report Share Posted September 27, 2014 You wrote still misfiring but that's the first time you said your car was misfiring. Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 27, 2014 Author Report Share Posted September 27, 2014 Right AND !!!! Quote Link to comment Share on other sites More sharing options...
Dblock Posted September 27, 2014 Report Share Posted September 27, 2014 It was just an observation, that way I could advise you on the steps to take. As failing an emissions test and a misfire although they can be related they are still different problems with different solutions. But you have some sort of attitude problem. Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 29, 2014 Author Report Share Posted September 29, 2014 Nice one... Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 29, 2014 Author Report Share Posted September 29, 2014 Please accsept my apologies... Sorry. 1 Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted September 29, 2014 Author Report Share Posted September 29, 2014 And my bad spelling....Sorry. Quote Link to comment Share on other sites More sharing options...
pkrboo Posted October 20, 2014 Report Share Posted October 20, 2014 (edited) Temp sensor?And have you had it scanned properly with vcds? Edited October 20, 2014 by pkrboo Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted October 24, 2014 Author Report Share Posted October 24, 2014 Sorry to sound so "dumb", but what is vcds. Temp sender has now been ordered. Thanks. Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted October 25, 2014 Author Report Share Posted October 25, 2014 Vag Com Dignostics systems. Quote Link to comment Share on other sites More sharing options...
pkrboo Posted October 25, 2014 Report Share Posted October 25, 2014 Sorry to sound so "dumb", but what is vcds. Temp sender has now been ordered. Thanks.yeo thats right for VCDS, did you get it scanned and confirmed that it was the temp sender? Quote Link to comment Share on other sites More sharing options...
pedro2682 Posted October 29, 2014 Author Report Share Posted October 29, 2014 Never got it scanned from vcds, got a cheap code reader. Emissions are perfect now thanks to Weslangdon for the cat cleaner idea. The reader gave me 301, 351, 352. Misfire cyl 1 & 2 and coil pack. I only bought the coil pack last year. Quote Link to comment Share on other sites More sharing options...
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