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1998 1.8 rough idle - brikerr
I have a rough idle, more obvious when cold than warm. I have changed the plugs, leads and run injection cleaner through it, but it's still there. Any suggestions would be appreciated
1998 1.8 rough idle - Screwloose

First a compression test; then check for any sort of air leak into the inlet side - gaskets, breathers, [particularly under the coils] servo, stuck EGR valve, anything.