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Model specific boards => Golf mk3 => Topic started by: Jasikasisback on 21 June 2013, 10:27

Title: Anyone know the resistance values for ignition coil and fuel injector?
Post by: Jasikasisback on 21 June 2013, 10:27

just want to check if these are in good shape. I have a spare coil so want to test it without putting it on the car. i also want to test the fuel injector on the car itself. i am not sure if the coil will show up on vagcom as faulty if the spark is weak.

Title: Re: Anyone know the resistance values for ignition coil and fuel injector?
Post by: itavaltalainen on 21 June 2013, 18:09

coil won't show up in ecu fault memory on mk3s. neither will injectors necessarily (may come up with a fuel adaptation error or similar).

coil will have a fairly high resistance and certainly output stage (where king lead goes on to) should have a high resistance in kOhm area to GND.

injectors will be low impedance, you're talking a few ohms, maybe up to few tens of ohms.

mind you both are inductive so they have a complex part to their resistance, I would imagine the input stage of the coil might even have a non-linear resistance because there might be a power transistor / semiconductor in there...