I have scraped this car through the last three MOTs by fitting my wifes exhaust to my car and getting it as hot as hell before the emmisions test and even then it has failed at least once and needed a retest. I will probably have to give up this September when it is due again which is a shame as the engine is OK, it doesn't use oil and the oil stays relatively clean for 4000 between changes. It is however running rich as the sooty plugs will testify. Any ideas on dealing with this cheaply as I do not want to take it to a garage to have the ECU looked at or tested as it costs a mint and my car is worth about £200. The Lambda is quite new (@18 months) but I suspect the cat is naff as it would never get through emmisions with it fitted, as I have already said I normally pinch the wifes for an MOT.
I know that the Lambda senses the oxygen content of the exhaust gases and the ECU adjusts accordingly but what I would like to know is what it (ecu) adjusts and could this be the fault. Incidently, I have a code reader but this doesn't find any faults and the engine light doesn't come on.
Edited by Dynamic Dave on 04/02/2010 at 19:02
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