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MG MGF Technical - MG TF emission problem

Hi ! I'm new happy owner of mgtf 135 (10/2003, Royal blue/beige leather, chrome details) in Finland. Car didn't pass the emission test. On idle HC ppm is too high. Result:
On Idle
CO% 0.1 ok
CO2% 15.1 ok
HC ppm 235 NOT OK

On higher rpm
CO% 0.1 Ok
CO2% 15.3 Ok
HC ppm 77 Ok

Sparkplugs changed but check them again one is still black and littlebit wet and others are ok. I havent seen any visible coolant leaks outside the engine. No coolant smell. Temperature is all the time normal. Car goes well. On idle only a little petrol smell. Engine yellow warning light is on. OPD failure code P0170. Has Anyone had same kind of problem ? Fuel injector fail or HGF ?

Esa Korhonen

Hi Esa,
Have a look at the and then click on forum, as there are more MGF entusiasts on there.
Hope this helps.

This thread was discussed between 30/01/2017 and 20/02/2017

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