1999Audi

I want to test ignition wires with a multi-meter - if wires are good what ohm I should get?
thanks

4Driver4

Ohm. They should all be roughly the same.

1999Audi

ignition wires tested from both sides:

1cyl 5.25
2cyl 5.0
3cyl 5.0
4cyl 4.92
5cyl 4.89
6cyl 4.94

good or not good? ;-)

what omh should consider pass for wires?

AudiCoupeV6

I donĀ“t think you will get a accurate measurement measuring youre cables that way...
Because the current that the ohm-meter gives out is to small!
I would get a battery and a resistor and let a known current run trough (measur current & Voltage trough/over) the cables and then calculate the resistance using R = U/I (Resistance = Volts/Amps)

For example use a car battery and put a 20ohm (high current) resistance before the cable the you should have a current of 0.6Amps.

slightly disgruntled

And 5 Ohms is pretty much no resistance anyways...
Ohms Law states that the relation is linear within operating parameters... (Melting wires or dying battery does not count.) The only thing you need to check is if the cable being checked is disconnected on both ends and you get accurate readings.

AudiCoupeV6

No way a 0.5m cuppercable have 5ohm resistance more like 0.5ohm. But then I donĀ“t know how big the resistance is for the connections.
But 5ohms is probably ok measuring directly on the cable using a multimeter.

1999Audi

yes,I did measuring directly on the cable using a multimeter.