Question about 2004 Audi A4

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When driving round town, car OK. When on M/Way if the RPM's exceed 2500- 3000 the engine will not pull and perfomance goes flat. When cold and directly on M/Way goes ok for 1st 5miles then flat again. Seem to reset itself when cold.

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Hi

Sopunds like either 1 of 3 things

Air mas sensor
EGR valve "exhaust gas recycler" valve
throttle control module.

Most likely the one of the first 2, check for air leaks as well. air mass is cheapest part, EGR and air mass can often be cleaned and work fine again. do you get an engine light at all?
if so then I would say have the EGR checked.

Regards
Dan

Posted on Jan 14, 2011

Testimonial: "Thanks for the info,The air mass sensor has been changed, so will try the EGR valve. Will try at earlest opp, Thanks again"

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Posted on Jan 02, 2017

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