Author Topic: erratic idle speed  (Read 875 times)

Offline tianaroja

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erratic idle speed
« on: 18 November 2004, 18:10 »
why does my mk3 8v sometimes idle at 1500-1700 then very slowly decrease to normal does anybody think it could lamda sensor?

the last mot it struggled on emmissions and the friendly mechanic cleaned it for me since then the idle is high