ecu

[rickyholder]

is there a way to test to see if an ecu works (even if the car is not running)

[Adam]

Ye, if the light comes on with ignition.

[rickyholder]

what does the light look like

[Adam]

Its in the middle of the clocks on a mk2, bottom middle.
Its orange, looks a bit like a choke light, two sides with a symbol in the middle.