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Old 09-13-2011, 11:20 AM
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Join Date: Jul 2011
Posts: 17
Ohms, Kilo Ohms and CPS

My question is about reading Ohms vs. K Ohms. I admit to being an idiot about numbers, especially when anything but exactly the number I expect is showing up. This is the case with my search for no spark on my '91 300E 2.6.

FSM says the acceptable spec range for the CPS is 680 - 1200 Ohms. My digital multimeter gives a reading of 0.856 Kilo Ohms when I place the probes on 7 and 31D per the FSM. These correspond to the inner and outer contact points of the plug (into to the EZL).

So, since my DMM set at "Auto" to read the available Ohms lands at Kilo Ohms is because it can't find full Ohms. Right?

In other words my CPS is shot. Right?

.856 K Ohms is not equal to 680 - 1200 Ohms (Not = 856 Ohms)

Should have paid more attention in math class.

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Old 09-13-2011, 12:56 PM
RANDY P's Avatar
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Join Date: Oct 2008
Location: Paris, Madrid, NYC, Mesa
Posts: 159
k = 1000. so .856 out of 1000

it's fine.
03 540I (GAK!!)
81 280E (W123)
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Old 09-13-2011, 01:18 PM
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Join Date: Jul 2006
Location: Pittsburgh
Posts: 119

.856 kohm DOES equal 856 ohms.
1996 C280 289K Traded
1997 E420 167K Traded
2001 S430 240K Traded
2010 E550 4matic 80K
2000 GMC Jimmy 198K Gone to Boneyard
2003 Camry LE 196K
2011 Mazda3 i Sport 31K
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Old 09-13-2011, 01:31 PM
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Join Date: Jul 2011
Posts: 17
Thank you. Much appreciate the help. So I need to continue testing components per the FSM instructions.

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