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Super Moderator
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23,902 Posts
No, it's set by the ECU. If you have an idle problem, try cleaning the nozzles, checking vacuum lines, boost leaks, air in the fuel, clogged fuel filter.
 

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Premium Member
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136 Posts
There is no way to adjust the idle with a screw. The computer controls the fuel pump and the fuel pump controls the rpm.
 

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Premium Member
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298 Posts
Don't forget, a diesel has no throttle. When you press on the gas pedal, it controls the injection pump and the injection pump gives it more fuel. It also tries to smooth out the idle. If you get a vag-com, you can take a log and see if the injectors are being controlled evenly. Not sure why you want a higher idle.
 
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