Spark plug wires resistance
 

Hello everyone,
After experiencing a random misfire codes for cyl 1 and 2 on a W210 1998 E320 (V6) it's time to change spark plugs at 195000 miles.
I've measured the resistance on each of the 12 spark wires. they are ranging from 1.6 kilo ohms (1600 ohms) to 2.5 kilo ohms 2500 ohms).
What is is the tolerance allowed?

Should I bite the bullet and a get a set of new OEM wires (I've been reading about nightmares with aftermarket wires).
Is it OK to replace just the few that are extremely out of range (mixing new with old)?

Thank you for your help.
M#.

PM raymond here or on Benzworld or MBworld as I think he posted the tolerance. Generally, people just replace the bad ones.

The longer the wire the higher the resistance. Sounds about right to me.

It's not so much as the resistance goes out of tolerance as it is that the insulation tends to break down.