Air Mass Problem

championlad

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Oct 30, 2008
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Hi,
I have a 1996 C180. The engine had a pinging coming from the engine so i replaced the Air MAss Sensor. it soted the problem and ran ok for a bit. now i am having these problems.
The Carb Spit on 1st start till its warm.
When its warm and i sit and rev it only gets to 4000rpms and then just stays there . i get the feelin of loss of power when driving and if i swtch off and let cool for a bit then start to drive again when at the lights or stopping the revs will dip to nearly stalling point then jump to over 1000 then back down. will do this for a bit then go stable.
I dont want to have to pay a frotune to diagnose the problem. please can anyone help............
Can it be a faulty air mass sensor. or something else.
 


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