E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Ohms, Kilo Ohms and CPS

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 13, 2011 | 10:14 AM
  #1  
black-55's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2007
Posts: 28
Likes: 0
From: Socal
2001 W210 E55 and 1995 W124 E320 (RIP), 1992 400E, 1991 300E 2.6
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.
Reply
Old Sep 13, 2011 | 11:38 AM
  #2  
PaulX608's Avatar
Super Member
 
Joined: Jul 2005
Posts: 717
Likes: 1
From: Manassas, VA, USA
2011 VW cc, 2004 ML350
1 kilo Ohm = 1000 Ohms
Thus your .856 kilo Ohms = 856 Ohms
Which is in the range indicated.
Reply
Old Sep 13, 2011 | 12:55 PM
  #3  
black-55's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2007
Posts: 28
Likes: 0
From: Socal
2001 W210 E55 and 1995 W124 E320 (RIP), 1992 400E, 1991 300E 2.6
Thanks Paul for your help. I'm back to researching and testing for the elusive culprit.
Reply
Old Sep 14, 2011 | 07:07 PM
  #4  
semis1's Avatar
Member
 
Joined: May 2010
Posts: 154
Likes: 6
From: SoCal
'91 C124 300CE,'06 ML 500 W164, '00 BMW MCOUPE, '65 COBRA REPL.
1 kilo X = 1,000 x
example
1 kilometer = 1,000 meters
1 kilogram (or 1 kilo) = 1,000 grams
1 kilo ohm = 1,000 ohms
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 12:43 PM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-3
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-4
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-5
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-6
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-7
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-8
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-9
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE