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#1
03-25-2005, 01:57 PM
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Reading Codes 1988 300E non-california
Okay I fixed the fuel pump relay and the car runs fine.
But I am trying to read the codes from the car and still do not have a clue. I have read numerous posts but it seems that nobody knows or they talk about another car. Can anybody please help. I have built the LED circuit from this guys website K6JRF's Page (formerly W6FZC) and I am ready for testing from plug X-11 thanks ACM 
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#2
03-25-2005, 02:38 PM
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Non-California cars don't have the ability to store codes!!
IF the duty cycle(lamda control) reading from the computer is cycling then there isn't any problems.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
03-25-2005, 02:46 PM
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If your car is not a California car you can only obtain on off ratio or duty cycle readout at X11... it does not store fault codes or give a pulse readout.
A $30.00 dollar multi-meter with a duty cycle setting can read the on-off ratio at X11 pin #3 to ground (ground=pin#2) Instructions can be found in the 124 MB CD set From the Engine Manual // Combustion Manual // 07.3 Mechanical/electronic gasoline injection system (KE injection) // 0121 Testing electrical components of KE injection system...pp 97.
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/831799-post13.html http://www.peachparts.com/shopforum/831807-post14.html
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