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  #1  
Old 07-12-2003, 10:18 PM
mike690003's Avatar
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HELP with multimeter readings

Hello Board,
Today I bought the Craftsman multimeter from Sears(3482139) from the "favorite multimeter" thread. Well, I set it to duty cycle to read percent. With my car was warmed up I ,plugged the red into #3 and the black into #2. It reads only 7.6 % !!! What is wrong??

HELP!!!
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  #2  
Old 07-12-2003, 10:21 PM
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Hello Board,
I then set the duty cycle to "Hz" and it reads around 97.61, what could be wrong??
__________________
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
HID/Xenon (D2S)
Keyless Entry
Monochromatic Paint (Custom Blue)
Smoked Tails
Flat Badged (front)
Debadged (rear)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS
http://memimage.cardomain.net/member.../352975_67.jpg
http://memimage.cardomain.net/member.../748335_24.jpg
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  #3  
Old 07-13-2003, 10:48 AM
LarryBible
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Don't read Hz, read %. To get a good lambda reading with your duty cycle meter you must warm up the engine first.

If after warming the engine you still have single digit duty cycle reading, then this is a trouble code that you will need to decipher.

Hope this helps,
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  #4  
Old 07-13-2003, 10:58 AM
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Mike,
Larry is smack on the duty cylce reading should be % and the car should be at operating temperature before start taking readings.
good luck.
m
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  #5  
Old 07-13-2003, 12:24 PM
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Hello Board,

Does anyone know what a 7.6% duty cycle could be? I tried adjusting the mixture with the 3mm hex,but the duty cycle stayed at 7.6%.

Does anyone have an idea what that 7.6% duty cycle means?? Or will I have to pay $$$ for a diagnostic at the dealer(not that I want to)?

Help
__________________
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
HID/Xenon (D2S)
Keyless Entry
Monochromatic Paint (Custom Blue)
Smoked Tails
Flat Badged (front)
Debadged (rear)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS
http://memimage.cardomain.net/member.../352975_67.jpg
http://memimage.cardomain.net/member.../748335_24.jpg
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  #6  
Old 07-13-2003, 03:48 PM
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drop me an email I will send you the jpeg of the codes.
m
__________________
Martin Ingram
Colorado Springs
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)
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  #7  
Old 07-14-2003, 12:56 AM
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Hello, my email is mike690003@hotmail.com


Does anyone have an idea what the 7.6% duty cycle indicates? I tested the car with the car at operating temp.
__________________
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
HID/Xenon (D2S)
Keyless Entry
Monochromatic Paint (Custom Blue)
Smoked Tails
Flat Badged (front)
Debadged (rear)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS
http://memimage.cardomain.net/member.../352975_67.jpg
http://memimage.cardomain.net/member.../748335_24.jpg
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  #8  
Old 07-14-2003, 11:17 AM
inspector1
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in general, it would indicate that the vehicle is in open loop. If indeed the vehicle was in opne loop then that is a extreem lean condition
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