How to... Idle speed inspection/adjustment--NA (MK1)/NB (MK2)

1 Warm up the engine to normal running temperature & switch off all electrical loads.

2 Link contacts TEN (Test ENgine) and GND (GrouND) in diagnostic connector [use a paper clip].

 

A general view underbonnet 1.6 Roadster

3 Adjust idle to 850 rpm (exact position of idle air screw varies slightly depending on year/cc of engine).

4 Remove link.