check engine light
 

my light came on and i have noting to read it with .. i did notice that under my hood along the firewall there is a row of pin connectors and there was a red light on .. i disconnected the battery to reset the light to see if it will come back on but just curious if anyone knows what that red light is

i read in a different post that you can buy a DMM from sears to read the engine codes .. but i have no idea what DMM is, and i dont know if i need anything additional to go along with the tool from sears

thanks in advance

1988 300se

Here's an example:

http://i19.photobucket.com/albums/b1...DSC_0037-1.jpg

"row of pin connectors" sounds like an 8 pin connector but it would be helpful to know exactly what you have.

yup the row is 8 connectors ..or at least its labled down the row to 8 ..not sure if there is actually 8 connector inputs .. number 4 was lit up when my engine light came on .. also what is that little button next to 2 for ?

ok so more info would be great here .. what holes do i stick the DMM in ? how does it read ?

my light came back on after idling .. i need to fix it so i can stop panicking ?

See pages 9, 10, 23 at http://www.geocities.com/MotorCity/Downs/1039/mercedes/cs1000_mb.pdf

im the most uberist newn with this sorry ..

the pic shows the round connector being used ... the pdf says use the straight row by the firewall ...

does it matter ? do they do the same thing ? i read and it said the 8 row by firewall was

4:
ELR - EDS
Diesel injection system - Electronic idle speed control system
Electronic diesel system

i dont have a diesel


triple sorry in advance

Your car is a 126.024, apparently a CA version since it has the 8 pin connector. You are trying to read the codes shown on page 23 of the Baum book. They are on pin #3 of the 8 pin connector. With the code tester shown on the top of page 9 insert the black pin into socket 1, the yellow pin into socket #3 and connect the red pin to the battery or a 12V power source. Can you post a picture of your 8 pin connector?

Here's a couple of links that may be helpful -

http://mywebpages.comcast.net/chwilka/Error_Code%20_reader_reset_tool.htm

http://pages.prodigy.net/jforgione/MB_X11.html - go to bottom of page

where is the air position sensor located and how much is it ?