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golf mk3.5 - erratic idle- ideas please - Nickski2

Hi i have a Golf Cabriolet 1999 1.6 it has an erratic idle, i have checked air filter and sprayed carb cleaner into the inlet.

im going to change the fuel filter next.

Any suggestions as to what should be done/checked next?

golf mk3.5 - erratic idle- ideas please - unthrottled

What happened when you sprayed carb cleaner into the inlet? You could use carb cleaner/propane to leak chase the vacuum hoses.

Is the EGR valve functioning properly?

If the engine has an idle control motor, is that functioning?