Audi A3 1.8 T AUM 2001 - Emissions failure #
Posted by Les Smith on July 31, 2010, 4:53 pm
Message modified by board administrator August 3, 2010, 2:58 pm
Year of Manufacture *: 2001 wauzzz84421009830
Engine Size and Code *: 1800 TURBO engine code AUM
( Optional ) Scanner Used: solus
Hi All.Your thoughts would be appreciated. Short history. Timing belt broke due to seized camshaft and 2nd hand engine fitted elsewhere. Off road for over a year. Failed mot and brought to me.Tick over lumpy but runs OK on road.Code read.About 10 codes, so erased. None returned. C02=12.3 O2=4.29 HC=15 CO=0.00 Lambda=1.238. Checked vac = 10 In-Hg at tick-over. 20Hg at fast idle. Compressions are all about 125.Will check my tester on good engine on Monday to make sure working ok. There had been a new timing belt fitted.No Vac leaks found.Exhaust gas tight. Checking valve timing next.Although running OK on road, do you think valve timing out could cause this fault?
Regards
Les
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Audi A3 1.8 T AUM 2001 - Emissions failure # - Les Smith July 31, 2010, 4:53 pm