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OBD Scanners Discussions on using On Board Diagnostic (OBD) scanners/ Diagnostic Equipment related to TDIs

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Old May 8th, 2010, 08:25   #1
dans tdi
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Join Date: May 2010
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Default a4 1.9 tdi rough idle only when warm

hi just bought a audi a4 1.9 tdi 1997 110 bhp its done 098000 miles and it runs fine when first started (when cold) but when its warm its rough on idling iv changed the fuelfillter put some injector cleaner in it and some in the tank but no change there and no warning lights on i am going to do the timing belt and check all the timing marks!does anyone know of any common faults or have any idea of what could be wrong the engine code is AFN thanks dan any reply's will be greatly appreciated
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Old May 9th, 2010, 21:03   #2
jetta ,97
 
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